diff --git a/module/dept/lang/en.php b/module/dept/lang/en.php
index d864835ea8..14c4126338 100644
--- a/module/dept/lang/en.php
+++ b/module/dept/lang/en.php
@@ -10,10 +10,10 @@
  * @link        http://www.zentao.net
  */
 $lang->dept->common      = 'Department';
-$lang->dept->manageChild = "Department";
+$lang->dept->manageChild = "Child Dept";
 $lang->dept->edit        = "Edit";
 $lang->dept->delete      = "Delete";
-$lang->dept->parent      = "Parent";
+$lang->dept->parent      = "Parent Dept";
 $lang->dept->manager     = "Manager";
 $lang->dept->name        = "Department Name";
 $lang->dept->browse      = "Manage";
diff --git a/module/dev/lang/en.php b/module/dev/lang/en.php
index 30be77b9c6..43b6ff49f4 100644
--- a/module/dev/lang/en.php
+++ b/module/dev/lang/en.php
@@ -28,15 +28,15 @@ $lang->dev->tableList = array();
 $lang->dev->tableList['action']         = 'Action';
 $lang->dev->tableList['bug']            = 'Bug';
 $lang->dev->tableList['build']          = 'Build';
-$lang->dev->tableList['burn']           = 'Burndown';
+$lang->dev->tableList['burn']           = 'Burndown Chart';
 $lang->dev->tableList['case']           = 'Test Case';
 $lang->dev->tableList['casestep']       = 'Case Step';
 $lang->dev->tableList['company']        = 'Company';
-$lang->dev->tableList['config']         = 'Config';
+$lang->dev->tableList['config']         = 'Configuration';
 $lang->dev->tableList['custom']         = 'Custom';
-$lang->dev->tableList['dept']           = 'Dept';
-$lang->dev->tableList['doc']            = 'Doc';
-$lang->dev->tableList['doclib']         = 'Doc Lib';
+$lang->dev->tableList['dept']           = 'Department';
+$lang->dev->tableList['doc']            = 'Document';
+$lang->dev->tableList['doclib']         = 'Doc Library';
 $lang->dev->tableList['effort']         = 'Effort';
 $lang->dev->tableList['extension']      = 'Extension';
 $lang->dev->tableList['file']           = 'File';
diff --git a/module/doc/lang/en.php b/module/doc/lang/en.php
index 4ff27480d0..0bc5dcb046 100644
--- a/module/doc/lang/en.php
+++ b/module/doc/lang/en.php
@@ -18,7 +18,7 @@ $lang->doc->lib            = 'Library';
 $lang->doc->module         = 'Module';
 $lang->doc->title          = 'Title';
 $lang->doc->digest         = 'Summary';
-$lang->doc->comment        = 'Remark';
+$lang->doc->comment        = 'Comment';
 $lang->doc->type           = 'Type';
 $lang->doc->content        = 'Text';
 $lang->doc->keywords       = 'Tags';
@@ -31,7 +31,7 @@ $lang->doc->editedDate     = 'Edited ';
 $lang->doc->version        = 'Version';
 $lang->doc->basicInfo      = 'Basic Info';
 $lang->doc->deleted        = 'Deleted';
-$lang->doc->fileObject     = 'The Object';
+$lang->doc->fileObject     = 'Linked Object';
 $lang->doc->whiteList      = 'White List';
 $lang->doc->contentType    = 'Format';
 $lang->doc->separator      = "<i class='icon-angle-right'></i>";
@@ -152,16 +152,16 @@ $lang->doc->customObjectLibs['customFiles'] = 'Show Custom Library';
 $lang->doc->orderLib = 'Library order settings';
 $lang->doc->customShowLibs = 'Library display settings';
 $lang->doc->customShowLibsList['zero']     = 'Display empty library';
-$lang->doc->customShowLibsList['children'] = 'Display sub-category documents';
-$lang->doc->customShowLibsList['unclosed'] = 'Only display projects that are not closed';
+$lang->doc->customShowLibsList['children'] = 'Display child-category documents';
+$lang->doc->customShowLibsList['unclosed'] = 'Display unclosed projects only';
 
 $lang->doc->confirmDelete      = "Do you want to delete this document?";
 $lang->doc->confirmDeleteLib   = "Do you want to delete this Doc Lib?";
-$lang->doc->errorEditSystemDoc = "Ssytem document library doesn't have to be changed.";
+$lang->doc->errorEditSystemDoc = "You don't have to change sytem document library.";
 $lang->doc->errorEmptyProduct  = "No {$lang->productCommon}. It cannot be created.";
 $lang->doc->errorEmptyProject  = "No {$lang->projectCommon}. It cannot be created.";
 $lang->doc->errorMainSysLib    = "This library cannot be deleted.";
-$lang->doc->accessDenied       = "Access denied!";
+$lang->doc->accessDenied       = "Access is denied!";
 $lang->doc->versionNotFount    = 'It does not exist in this build.';
 $lang->doc->noDoc              = 'No docs. ';
 $lang->doc->cannotCreateOffice = 'Sorry, %s can only be created in ZenTao Enterprise. Contact renee@easysoft.ltd to try ZenTao Enterprise.';
@@ -170,17 +170,17 @@ $lang->doc->noEditedDoc        = 'You have not edited any document.';
 $lang->doc->noOpenedDoc        = 'You have not created any document.';
 $lang->doc->noCollectedDoc     = 'You have not collected any document.';
 
-$lang->doc->noticeAcl['lib']['product']['default'] = 'Users with privileges to access the selected products have access to it.';
-$lang->doc->noticeAcl['lib']['product']['custom']  = 'Users with privileges to access the selected products or users in the whiltelist have access to visit it.';
-$lang->doc->noticeAcl['lib']['project']['default'] = 'Users with privileges to access the selected projects have access to it.';
-$lang->doc->noticeAcl['lib']['project']['custom']  = 'Users with privileges to access the selected projects or users in the whiltelist have access to it.';
-$lang->doc->noticeAcl['lib']['custom']['open']     = 'All users have access to it.';
-$lang->doc->noticeAcl['lib']['custom']['custom']   = 'Users in the whitelist have access to it.';
-$lang->doc->noticeAcl['lib']['custom']['private']  = 'Only the one who created it has access to it.';
+$lang->doc->noticeAcl['lib']['product']['default'] = 'Users with privileges to access the selected products can access it.';
+$lang->doc->noticeAcl['lib']['product']['custom']  = 'Users with privileges to access the selected products or users in the whiltelist can access it.';
+$lang->doc->noticeAcl['lib']['project']['default'] = 'Users with privileges to access the selected projects can access it.';
+$lang->doc->noticeAcl['lib']['project']['custom']  = 'Users with privileges to access the selected projects or users in the whiltelist can access it.';
+$lang->doc->noticeAcl['lib']['custom']['open']     = 'All users can access it.';
+$lang->doc->noticeAcl['lib']['custom']['custom']   = 'Users in the whitelist can access it.';
+$lang->doc->noticeAcl['lib']['custom']['private']  = 'Only the one who created it can access it.';
 
 $lang->doc->noticeAcl['doc']['open']    = 'Users with privileges to access the doc lib which the doc belongs to have access to it.';
-$lang->doc->noticeAcl['doc']['custom']  = 'Users in the whiltelist have access to visit it.';
-$lang->doc->noticeAcl['doc']['private'] = 'Only the one who created it has access to it.';
+$lang->doc->noticeAcl['doc']['custom']  = 'Users in the whiltelist can access it.';
+$lang->doc->noticeAcl['doc']['private'] = 'Only the one who created it can access it.';
 
 $lang->doc->placeholder = new stdclass();
 $lang->doc->placeholder->url = 'Url';
@@ -214,4 +214,4 @@ $lang->doclib->tabList['product'] = $lang->productCommon;
 $lang->doclib->tabList['project'] = $lang->projectCommon;
 $lang->doclib->tabList['custom']  = 'Custom';
 
-$lang->doclib->nameList['custom'] = 'Doc lib name';
+$lang->doclib->nameList['custom'] = 'Custom Name';