diff --git a/frontend/src/components/dialog/invite-people-dialog.js b/frontend/src/components/dialog/invite-people-dialog.js
index 0c6deb4bcc..da89ab9335 100644
--- a/frontend/src/components/dialog/invite-people-dialog.js
+++ b/frontend/src/components/dialog/invite-people-dialog.js
@@ -104,7 +104,7 @@ class InvitePeopleDialog extends React.Component {
     const { isSubmitting } = this.state;
     return (
       <Modal isOpen={true} toggle={this.props.toggleDialog}>
-        <ModalHeader toggle={this.props.toggleDialog}>{gettext('Invite People')}</ModalHeader>
+        <ModalHeader toggle={this.props.toggleDialog}>{gettext('Invite Guest')}</ModalHeader>
         <ModalBody>
           <label htmlFor="emails">{gettext('Emails')}</label>
           <Input
diff --git a/frontend/src/components/dialog/share-dialog.js b/frontend/src/components/dialog/share-dialog.js
index 58672b5e56..86cb1fc993 100644
--- a/frontend/src/components/dialog/share-dialog.js
+++ b/frontend/src/components/dialog/share-dialog.js
@@ -121,7 +121,7 @@ class ShareDialog extends React.Component {
                 {canInvitePeople &&
                   <NavItem>
                     <NavLink className={activeTab === 'invitePeople' ? 'active' : ''} onClick={this.toggle.bind(this, 'invitePeople')}>
-                      {gettext('Invite People')}
+                      {gettext('Invite Guest')}
                     </NavLink>
                   </NavItem>
                 }
diff --git a/frontend/src/components/dialog/share-to-invite-people.js b/frontend/src/components/dialog/share-to-invite-people.js
index b5b300b9a5..e4dc43e3b4 100644
--- a/frontend/src/components/dialog/share-to-invite-people.js
+++ b/frontend/src/components/dialog/share-to-invite-people.js
@@ -251,7 +251,7 @@ class ShareToInvitePeople extends React.Component {
         <table className="table-thead-hidden">
           <thead>
             <tr>
-              <th width="50%">{gettext('Invite People')}</th>
+              <th width="50%">{gettext('Invite Guest')}</th>
               <th width="35%">{gettext('Permission')}</th>
               <th width="15%">{''}</th>
             </tr>
diff --git a/frontend/src/components/main-side-nav.js b/frontend/src/components/main-side-nav.js
index a4372e9984..46af44041d 100644
--- a/frontend/src/components/main-side-nav.js
+++ b/frontend/src/components/main-side-nav.js
@@ -281,9 +281,9 @@ class MainSideNav extends React.Component {
             </li>
             {canInvitePeople &&
               <li className="nav-item">
-                <Link className={`nav-link ellipsis ${this.getActiveClass('invitations')}`} to={siteRoot + 'invitations/'} title={gettext('Invite People')} onClick={(e) => this.tabItemClick(e, 'invitations')}>
+                <Link className={`nav-link ellipsis ${this.getActiveClass('invitations')}`} to={siteRoot + 'invitations/'} title={gettext('Invite Guest')} onClick={(e) => this.tabItemClick(e, 'invitations')}>
                   <span className="sf2-icon-invite" aria-hidden="true"></span>
-                  <span className="nav-text">{gettext('Invite People')}</span>
+                  <span className="nav-text">{gettext('Invite Guest')}</span>
                 </Link>
               </li>
             }
diff --git a/frontend/src/components/toolbar/invitations-toolbar.js b/frontend/src/components/toolbar/invitations-toolbar.js
index 49a078f66a..2085323e1a 100644
--- a/frontend/src/components/toolbar/invitations-toolbar.js
+++ b/frontend/src/components/toolbar/invitations-toolbar.js
@@ -27,11 +27,11 @@ class InvitationsToolbar extends React.Component {
           {Utils.isDesktop() ? (
             <div className="operation">
               <Button color="btn btn-secondary operation-item" onClick={toggleInvitePeopleDialog}>
-                <i className="fas fa-plus-square text-secondary mr-1"></i>{gettext('Invite People')}
+                <i className="fas fa-plus-square text-secondary mr-1"></i>{gettext('Invite Guest')}
               </Button>
             </div>
           ) : (
-            <span className="sf2-icon-plus mobile-toolbar-icon" title={gettext('Invite People')} onClick={toggleInvitePeopleDialog}></span>
+            <span className="sf2-icon-plus mobile-toolbar-icon" title={gettext('Invite Guest')} onClick={toggleInvitePeopleDialog}></span>
           )}
         </div>
         <CommonToolbar searchPlaceholder={this.props.searchPlaceholder} onSearchedClick={onSearchedClick}/>
diff --git a/frontend/src/pages/groups/group-view.js b/frontend/src/pages/groups/group-view.js
index c0d33ed33e..5883632c36 100644
--- a/frontend/src/pages/groups/group-view.js
+++ b/frontend/src/pages/groups/group-view.js
@@ -126,9 +126,8 @@ class GroupView extends React.Component {
       if (currentGroup.parent_group_id === 0) {
         emptyTip = (
           <EmptyTip>
-            <h2>{gettext('No library is shared to this group')}</h2>
-            <p>{gettext('You can share libraries by clicking the "New Library" button above or the "Share" icon on your libraries list.')}</p>
-            <p>{gettext('Libraries shared as writable can be downloaded and synced by other group members. Read only libraries can only be downloaded, updates by others will not be uploaded.')}</p>
+            <h2>{gettext('No libraries shared with this group')}</h2>
+            <p>{gettext('No libraries have been shared with this group yet. A library shared with a group can be accessed by all group members. You can share a library with a group in "My Libraries". You can also create a new library to be shared with this group by clicking the "New Library" button in the menu bar.')}</p>
           </EmptyTip>
         );
       } else {
diff --git a/frontend/src/pages/groups/groups-view.js b/frontend/src/pages/groups/groups-view.js
index 020d5fe23d..caffef5c0a 100644
--- a/frontend/src/pages/groups/groups-view.js
+++ b/frontend/src/pages/groups/groups-view.js
@@ -185,10 +185,10 @@ class GroupsView extends React.Component {
   render() {
     const emptyTip = (
       <EmptyTip>
-        <h2>{gettext('You are not in any groups')}</h2>
+        <h2>{gettext('No groups')}</h2>
         {canAddGroup ?
-          <p>{gettext('Groups allow multiple people to collaborate on libraries. You can create a group by clicking the "New Group" button.')}</p> :
-          <p>{gettext('Groups allow multiple people to collaborate on libraries. Groups you join will be listed here.')}</p>
+          <p>{gettext('You are not in any groups. Groups allow multiple people to collaborate on libraries. You can create a group by clicking the "New Group" button in the menu bar.')}</p> :
+          <p>{gettext('You are not in any groups. Groups allow multiple people to collaborate on libraries. Groups you join will be listed here.')}</p>
         }
       </EmptyTip>
     );
diff --git a/frontend/src/pages/invitations/invitations-view.js b/frontend/src/pages/invitations/invitations-view.js
index 64681618c0..35020f2e43 100644
--- a/frontend/src/pages/invitations/invitations-view.js
+++ b/frontend/src/pages/invitations/invitations-view.js
@@ -179,7 +179,8 @@ class Content extends Component {
     if (!invitationsList.length) {
       return ( 
         <EmptyTip>
-          <h2>{gettext('You have not invited any people.')}</h2>
+          <h2>{gettext('No guest invitations')}</h2>
+          <p>{gettext('You have not invited any guests yet. A guest can access shared libraries through the web interface allowing more efficient ways to collaborate than through links. You can invite a guest by clicking the "Invite Guest" button in the menu bar.')}</p>
         </EmptyTip>
       );
     }
@@ -269,7 +270,7 @@ class InvitationsView extends React.Component {
         <div className="main-panel-center flex-row">
           <div className="cur-view-container">
             <div className="cur-view-path">
-              <h3 className="sf-heading">{gettext('Invite People')}</h3>
+              <h3 className="sf-heading">{gettext('Invite Guest')}</h3>
             </div>
             <div className="cur-view-content">
               <Content data={this.state} />
diff --git a/frontend/src/pages/linked-devices/linked-devices.js b/frontend/src/pages/linked-devices/linked-devices.js
index 02ef9445b9..524ea01faa 100644
--- a/frontend/src/pages/linked-devices/linked-devices.js
+++ b/frontend/src/pages/linked-devices/linked-devices.js
@@ -19,8 +19,8 @@ class Content extends Component {
     } else {
       const emptyTip = (
         <EmptyTip>
-          <h2>{gettext('You do not have connected devices')}</h2>
-          <p>{gettext('Your clients (Desktop/Android/iOS) will be listed here.')}</p>
+          <h2>{gettext('No linked devices')}</h2>
+          <p>{gettext('You have not accessed your files with any client (desktop or mobile) yet. Configure clients on your devices to access your data more comfortably.')}</p>
         </EmptyTip>
       );
 
diff --git a/frontend/src/pages/my-libs/my-libs-deleted.js b/frontend/src/pages/my-libs/my-libs-deleted.js
index 34322d9c0a..a41abc8bb1 100644
--- a/frontend/src/pages/my-libs/my-libs-deleted.js
+++ b/frontend/src/pages/my-libs/my-libs-deleted.js
@@ -1,7 +1,7 @@
 import React, { Component, Fragment } from 'react';
 import { Link } from '@reach/router';
 import moment from 'moment';
-import { gettext, siteRoot, lang } from '../../utils/constants';
+import { gettext, siteRoot, lang, trashReposExpireDays } from '../../utils/constants';
 import { seafileAPI } from '../../utils/seafile-api';
 import { Utils } from '../../utils/utils';
 import toaster from '../../components/toast';
@@ -59,12 +59,13 @@ class MyLibsDeleted extends Component {
               {this.state.isLoading && <Loading />}
               {(!this.state.isLoading && this.state.deletedRepoList.length === 0) &&
               <EmptyTip>
-                <h2>{gettext('No deleted libraries.')}</h2>
+                <h2>{gettext('No deleted libraries')}</h2>
+                <p>{gettext('You have not deleted any libraries in the last {placeholder} days. A deleted library will be cleaned automatically after this period.').replace('{placeholder}', trashReposExpireDays)}</p>
               </EmptyTip>
               }
               {this.state.deletedRepoList.length !== 0 && 
                 <div>
-                  <p className="tip">{gettext('Tip: libraries deleted 30 days ago will be cleaned automatically.')}</p>
+                  <p className="tip mt-2">{gettext('Tip: libraries deleted {placeholder} days ago will be cleaned automatically.').replace('{placeholder}', trashReposExpireDays)}</p>
                   <DeletedRepoTable 
                     deletedRepoList={this.state.deletedRepoList}
                     refreshDeletedRepoList={this.refreshDeletedRepoList}
diff --git a/frontend/src/pages/my-libs/my-libs.js b/frontend/src/pages/my-libs/my-libs.js
index ae59018f63..ab3f2adca5 100644
--- a/frontend/src/pages/my-libs/my-libs.js
+++ b/frontend/src/pages/my-libs/my-libs.js
@@ -34,17 +34,16 @@ class MyLibraries extends Component {
       sortOrder: cookie.load('seafile-repo-dir-sort-order') || 'asc', // 'asc' or 'desc'
     };
 
-    this.emptyMessage = (
+    this.emptyTip = (
       <EmptyTip>
-        <h2>{gettext('You have not created any libraries')}</h2>
-        <p>{gettext('You can create a library to organize your files. For example, you can create one for each of your projects. Each library can be synchronized and shared separately.')}</p>
+        <h2>{gettext('No libraries')}</h2>
+        <p>{gettext('You have not created any libraries yet. A library is a container to organize your files and folders. A library can also be shared with others and synced to your connected devices. You can create a library by clicking the "New Library" button in the menu bar.')}</p>
       </EmptyTip>
     );
   }
 
   componentDidMount() {
     seafileAPI.listRepos({type: 'mine'}).then((res) => {
-      // res: {data: {...}, status: 200, statusText: "OK", headers: {…}, config: {…}, …}
       let repoList = res.data.repos.map((item) => {
         return new Repo(item);
       });
@@ -160,7 +159,7 @@ class MyLibraries extends Component {
             <div className="cur-view-content">
               {this.state.isLoading && <Loading />}
               {!this.state.isLoading && this.state.errorMsg && <p className="error text-center mt-8">{this.state.errorMsg}</p>}
-              {!this.state.isLoading && !this.state.errorMsg && this.state.repoList.length === 0 && this.emptyMessage}
+              {!this.state.isLoading && !this.state.errorMsg && this.state.repoList.length === 0 && this.emptyTip}
               {!this.state.isLoading && !this.state.errorMsg && this.state.repoList.length > 0 &&
                 <MylibRepoListView
                   sortBy={this.state.sortBy}
diff --git a/frontend/src/pages/share-admin/folders.js b/frontend/src/pages/share-admin/folders.js
index 7dd150eeb9..50ac18040b 100644
--- a/frontend/src/pages/share-admin/folders.js
+++ b/frontend/src/pages/share-admin/folders.js
@@ -30,8 +30,8 @@ class Content extends Component {
     } else {
       const emptyTip = (
         <EmptyTip>
-          <h2>{gettext('You have not shared any folders')}</h2>
-          <p>{gettext('You can share a single folder with a registered user if you don\'t want to share a whole library.')}</p>
+          <h2>{gettext('No folders shared')}</h2>
+          <p>{gettext('You have not shared any folders with other users yet. You can share a folder with other users by clicking the share icon to the right of a folder\'s name.')}</p>
         </EmptyTip>
       );
 
diff --git a/frontend/src/pages/share-admin/libraries.js b/frontend/src/pages/share-admin/libraries.js
index eea8899bb3..2ce654783a 100644
--- a/frontend/src/pages/share-admin/libraries.js
+++ b/frontend/src/pages/share-admin/libraries.js
@@ -29,8 +29,8 @@ class Content extends Component {
     } else {
       const emptyTip = (
         <EmptyTip>
-          <h2>{gettext('You have not shared any libraries')}</h2>
-          <p>{gettext('You can share libraries with your friends and colleagues by clicking the share icon of your own libraries in your home page or creating a new library in groups you are in.')}</p>
+          <h2>{gettext('No libraries shared')}</h2>
+          <p>{gettext('You have not shared any libraries with other users yet. You can share a library with other users by clicking the share icon to the right of a library\'s name in "My Libraries".')}</p>
         </EmptyTip>
       );
 
diff --git a/frontend/src/pages/share-admin/share-links.js b/frontend/src/pages/share-admin/share-links.js
index 3cb7531b4d..879066e058 100644
--- a/frontend/src/pages/share-admin/share-links.js
+++ b/frontend/src/pages/share-admin/share-links.js
@@ -39,8 +39,8 @@ class Content extends Component {
     } else {
       const emptyTip = (
         <EmptyTip>
-          <h2>{gettext('You don\'t have any share links')}</h2>
-          <p>{gettext('You can generate a share link for a folder or a file. Anyone who receives this link can view the folder or the file online.')}</p>
+          <h2>{gettext('No share links')}</h2>
+          <p>{gettext('You have not created any share links yet. A share link can be used to share files and folders with anyone. You can create a share link for a file or folder by clicking the share icon to the right of its name.')}</p>
         </EmptyTip>
       );
 
diff --git a/frontend/src/pages/share-admin/upload-links.js b/frontend/src/pages/share-admin/upload-links.js
index 5700682ab2..db043fda12 100644
--- a/frontend/src/pages/share-admin/upload-links.js
+++ b/frontend/src/pages/share-admin/upload-links.js
@@ -25,8 +25,8 @@ class Content extends Component {
 
     const emptyTip = (
       <EmptyTip>
-        <h2>{gettext('You don\'t have any upload links')}</h2>
-        <p>{gettext('You can generate an upload link from any folder. Anyone who receives this link can upload files to this folder.')}</p>
+        <h2>{gettext('No upload links')}</h2>
+        <p>{gettext('You have not created any upload links yet. An upload link allows anyone to upload files to a folder or library. You can create an upload link for a folder or library by clicking the share icon to the right of its name.')}</p>
       </EmptyTip>
     );
 
diff --git a/frontend/src/pages/shared-libs/shared-libs.js b/frontend/src/pages/shared-libs/shared-libs.js
index 378a6c84cc..03f09eb61d 100644
--- a/frontend/src/pages/shared-libs/shared-libs.js
+++ b/frontend/src/pages/shared-libs/shared-libs.js
@@ -44,8 +44,8 @@ class Content extends Component {
 
     const emptyTip = (
       <EmptyTip>
-        <h2>{gettext('No libraries have been shared with you')}</h2>
-        <p>{gettext('No libraries have been shared directly with you. You can find more shared libraries at "Shared with groups".')}</p>
+        <h2>{gettext('No shared libraries')}</h2>
+        <p>{gettext('No libraries have been shared directly with you. A shared library can be shared with full or restricted permission. If you need access to a library owned by another user, ask the user to share the library with you.')}</p>
       </EmptyTip>
     );
 
diff --git a/frontend/src/pages/shared-with-all/public-shared-view.js b/frontend/src/pages/shared-with-all/public-shared-view.js
index d651b4f189..f8ff288c31 100644
--- a/frontend/src/pages/shared-with-all/public-shared-view.js
+++ b/frontend/src/pages/shared-with-all/public-shared-view.js
@@ -167,7 +167,7 @@ class PublicSharedView extends React.Component {
     let emptyTip = (
       <EmptyTip>
         <h2>{gettext('No public libraries')}</h2>
-        <p>{gettext('You can create a public library by clicking the "New Library" button, others can view and download this library.')}</p>
+        <p>{gettext('No public libraries have been created yet. A public library is accessible by all users. You can create a public library by clicking the "Add Library" button in the menu bar.')}</p>
       </EmptyTip>
     );
     return (
diff --git a/frontend/src/pages/starred/starred.js b/frontend/src/pages/starred/starred.js
index 73dd56d7f1..efab48e1b6 100644
--- a/frontend/src/pages/starred/starred.js
+++ b/frontend/src/pages/starred/starred.js
@@ -21,7 +21,8 @@ class Content extends Component {
     } else {
       const emptyTip = (
         <EmptyTip>
-          <h2>{gettext('You don\'t have any favorite items yet')}</h2>
+          <h2>{gettext('No favorites')}</h2>
+          <p>{gettext('You have not added any libraries, folders or files to your favorites yet. A favorite gives you quick access to your most frequently used objects. You can add a library, folder or file to your favorites by clicking the star to the left of its name.')}</p>
         </EmptyTip>
       );
 
diff --git a/frontend/src/pages/wikis/wikis.js b/frontend/src/pages/wikis/wikis.js
index 011725c7d7..57ede5e55b 100644
--- a/frontend/src/pages/wikis/wikis.js
+++ b/frontend/src/pages/wikis/wikis.js
@@ -145,8 +145,8 @@ class Wikis extends Component {
               }
               {(!this.state.loading && this.state.wikis.length === 0) &&
                 <EmptyTip>
-                  <h2>{gettext('You do not have any public library')}</h2>
-                  <p>{gettext('Public libraries are for publishing your contents in an organized way.')}</p>
+                  <h2>{gettext('No published libraries')}</h2>
+                  <p>{gettext('You have not published any libraries yet. A published library can be accessed by anyone, not only users, via its URL. You can publish a library by clicking the "Publish a Library" button in the menu bar.')}</p>
                 </EmptyTip>
               }
             </div>
diff --git a/frontend/src/utils/constants.js b/frontend/src/utils/constants.js
index 2534bf1a41..527e063023 100644
--- a/frontend/src/utils/constants.js
+++ b/frontend/src/utils/constants.js
@@ -21,6 +21,7 @@ export const faviconPath = window.app.config.faviconPath;
 export const loginBGPath = window.app.config.loginBGPath;
 
 //pageOptions
+export const trashReposExpireDays = window.app.pageOptions.trashReposExpireDays;
 export const dtableWebServer = window.app.pageOptions.dtableWebServer;
 export const seafileCollabServer = window.app.pageOptions.seafileCollabServer;
 export const name = window.app.pageOptions.name;
diff --git a/seahub/templates/base_for_react.html b/seahub/templates/base_for_react.html
index 7339e1ad6c..e96aec7b1b 100644
--- a/seahub/templates/base_for_react.html
+++ b/seahub/templates/base_for_react.html
@@ -55,6 +55,7 @@
             contactEmail: "{{request.user.username|email2contact_email|escapejs}}",
             username: "{{request.user.username|escapejs}}",
             guideEnabled: {% if guide_enabled %} true {% else %} false {% endif %},
+            trashReposExpireDays: {{ trash_repos_expire_days }},
             canAddRepo: {% if user.permissions.can_add_repo %} true {% else %} false {% endif %},
             canAddGroup: {% if user.permissions.can_add_group %} true {% else %} false {% endif %},
             canGenerateShareLink: {% if user.permissions.can_generate_share_link %} true {% else %} false {% endif %},
diff --git a/seahub/views/__init__.py b/seahub/views/__init__.py
index 02993e2a0e..e0ad20a40e 100644
--- a/seahub/views/__init__.py
+++ b/seahub/views/__init__.py
@@ -1123,10 +1123,17 @@ def react_fake_view(request, **kwargs):
     if guide_enabled:
         create_default_library(request)
 
+    try:
+        expire_days = seafile_api.get_server_config_int('library_trash', 'expire_days')
+    except Exception as e:
+        logger.error(e)
+        expire_days = -1
+
     folder_perm_enabled = True if is_pro_version() and ENABLE_FOLDER_PERM else False
 
     return render(request, "react_app.html", {
         "guide_enabled": guide_enabled,
+        'trash_repos_expire_days': expire_days if expire_days > 0 else 30,
         'dtable_web_server': DTABLE_WEB_SERVER,
         'seafile_collab_server': SEAFILE_COLLAB_SERVER,
         'storages': get_library_storages(request),