diff --git a/module/action/lang/en.php b/module/action/lang/en.php
index 8ad1096f4f..c8bada78a8 100755
--- a/module/action/lang/en.php
+++ b/module/action/lang/en.php
@@ -96,24 +96,24 @@ $lang->action->desc->commented      = '$date, added by <strong>$actor</strong>.'
 $lang->action->desc->activated      = '$date, activated by <strong>$actor</strong> .' . "\n";
 $lang->action->desc->blocked        = '$date, blocked by <strong>$actor</strong> .' . "\n";
 $lang->action->desc->moved          = '$date, moved by <strong>$actor</strong> , which was "$extra".' . "\n";
-$lang->action->desc->confirmed      = '$date, <strong>$actor</strong> confirmed the change of Story. The latest version is <strong>#$extra</strong>.' . "\n";
-$lang->action->desc->caseconfirmed  = '$date, <strong>$actor</strong> confirmed the change of Case. The latest version is <strong>#$extra</strong>' . "\n";
+$lang->action->desc->confirmed      = '$date, <strong>$actor</strong> confirmed the story change. The latest build is <strong>#$extra</strong>.' . "\n";
+$lang->action->desc->caseconfirmed  = '$date, <strong>$actor</strong> confirmed the case change. The latest build is <strong>#$extra</strong>' . "\n";
 $lang->action->desc->bugconfirmed   = '$date, <strong>$actor</strong> confirmed Bug.' . "\n";
-$lang->action->desc->frombug        = '$date, transformed from <strong>$actor</strong> Bug whose ID was <strong>$extra</strong>.';
+$lang->action->desc->frombug        = '$date, converted from <strong>$actor</strong>. Its ID was <strong>$extra</strong>.';
 $lang->action->desc->started        = '$date, started by <strong>$actor</strong>.' . "\n";
 $lang->action->desc->restarted      = '$date, continued by <strong>$actor</strong>.' . "\n";
-$lang->action->desc->delayed        = '$date, delayde by <strong>$actor</strong>.' . "\n";
+$lang->action->desc->delayed        = '$date, postponed by <strong>$actor</strong>.' . "\n";
 $lang->action->desc->suspended      = '$date, suspended by <strong>$actor</strong>.' . "\n";
 $lang->action->desc->recordestimate = '$date, recorded by <strong>$actor</strong> and it consumed <strong>$extra</strong> hours.';
 $lang->action->desc->editestimate   = '$date, <strong>$actor</strong> edited Hour.';
-$lang->action->desc->deleteestimate = '$date, <strong>$actor</strong> delete Hour.';
+$lang->action->desc->deleteestimate = '$date, <strong>$actor</strong> deleted Hour.';
 $lang->action->desc->canceled       = '$date, cancelled by <strong>$actor</strong>.' . "\n";
-$lang->action->desc->svncommited    = '$date, <strong>$actor</strong> committed and the version is <strong>#$extra</strong>.' . "\n";
-$lang->action->desc->gitcommited    = '$date, <strong>$actor</strong> committed and the version is <strong>#$extra</strong>.' . "\n";
+$lang->action->desc->svncommited    = '$date, <strong>$actor</strong> committed and the build is <strong>#$extra</strong>.' . "\n";
+$lang->action->desc->gitcommited    = '$date, <strong>$actor</strong> committed and the build is <strong>#$extra</strong>.' . "\n";
 $lang->action->desc->finished       = '$date, finished by <strong>$actor</strong>.' . "\n";
 $lang->action->desc->paused         = '$date, paused by <strong>$actor</strong>.' . "\n";
 $lang->action->desc->verified       = '$date, verified by <strong>$actor</strong>.' . "\n";
-$lang->action->desc->diff1          = '<strong><i>%s</i></strong> has been changed. Its value was "%s" and the new value is "%s".<br />' . "\n";
+$lang->action->desc->diff1          = '<strong><i>%s</i></strong> has been changed. It was "%s" and it is "%s".<br />' . "\n";
 $lang->action->desc->diff2          = '<strong><i>%s</i></strong> has been changed. The difference is ' . "\n" . "<blockquote>%s</blockquote>" . "\n<div class='hidden'>%s</div>";
 $lang->action->desc->diff3          = 'File Name %s was changed to %s .' . "\n";
 $lang->action->desc->linked2bug     = '$date Linked to <strong>$extra</strong> by <strong>$actor</strong>';
diff --git a/module/doc/lang/en.php b/module/doc/lang/en.php
index 07f25f7343..6224beb469 100644
--- a/module/doc/lang/en.php
+++ b/module/doc/lang/en.php
@@ -117,9 +117,9 @@ $lang->doc->confirmDeleteLib   = "Do you want to delete this Doc Lib?";
 $lang->doc->errorEditSystemDoc = "System Doc Lib needs no modifications.";
 $lang->doc->errorEmptyProduct  = "No {$lang->productCommon}. It cannot be created.";
 $lang->doc->errorEmptyProject  = "No {$lang->projectCommon}. It cannot be created.";
-$lang->doc->errorMainSysLib    = "Can not delete this library.";
+$lang->doc->errorMainSysLib    = "This library cannot be deleted.";
 $lang->doc->accessDenied       = "Access denied!";
-$lang->doc->versionNotFount    = 'It is not exist in this version.';
+$lang->doc->versionNotFount    = 'It does not exist in this build.';
 
 $lang->doc->placeholder = new stdclass();
 $lang->doc->placeholder->url = 'Url';
diff --git a/module/misc/lang/en.php b/module/misc/lang/en.php
index 910e36e779..93cd9a2034 100644
--- a/module/misc/lang/en.php
+++ b/module/misc/lang/en.php
@@ -27,7 +27,7 @@ $lang->misc->zentao->icons['service'] = 'heart';
 
 $lang->misc->zentao->about['proversion']   = 'ZenTao Pro';
 $lang->misc->zentao->about['official']     = "Official Website";
-$lang->misc->zentao->about['changelog']    = "Version Log";
+$lang->misc->zentao->about['changelog']    = "Change Log";
 $lang->misc->zentao->about['license']      = "License";
 
 $lang->misc->zentao->support['vip']        = "VIP Technical Support";
diff --git a/module/report/lang/en.php b/module/report/lang/en.php
index 68e5916d0d..41855b2346 100644
--- a/module/report/lang/en.php
+++ b/module/report/lang/en.php
@@ -35,13 +35,13 @@ $lang->report->singleColor[] = 'F6BD0F';
 
 $lang->report->projectDeviation = $lang->projectCommon . ' Deviation';
 $lang->report->productSummary   = $lang->productCommon . ' Summary';
-$lang->report->bugCreate        = 'Bugs';
-$lang->report->bugAssign        = 'Bug Assignment';
+$lang->report->bugCreate        = 'Bug Submission Report';
+$lang->report->bugAssign        = 'Bug Assignment Report';
 $lang->report->workload         = 'Workload';
 $lang->report->workloadAB       = 'Workload';
-$lang->report->bugOpenedDate    = 'Open on';
-$lang->report->taskAssignedDate = 'Duration';
-$lang->report->beginAndEnd      = 'Duration';
+$lang->report->bugOpenedDate    = 'Bug Opened From';
+$lang->report->taskAssignedDate = 'From';
+$lang->report->beginAndEnd      = 'Date';
 $lang->report->dept             = 'Dept';
 $lang->report->deviationChart   = $lang->projectCommon . ' Deviation Chart';
 
@@ -55,9 +55,9 @@ $lang->report->id            = 'ID';
 $lang->report->project       = $lang->projectCommon;
 $lang->report->product       = $lang->productCommon;
 $lang->report->user          = 'Username';
-$lang->report->bugTotal      = 'Bugs';
-$lang->report->task          = 'Tasks';
-$lang->report->estimate      = 'Est.';
+$lang->report->bugTotal      = 'Bug';
+$lang->report->task          = 'Task';
+$lang->report->estimate      = 'Hour';
 $lang->report->consumed      = 'Consumed';
 $lang->report->remain        = 'Remained';
 $lang->report->deviation     = 'Deviation';
@@ -66,8 +66,8 @@ $lang->report->total         = 'Total';
 $lang->report->to            = 'to';
 $lang->report->taskTotal     = "Total Tasks";
 $lang->report->manhourTotal  = "Total Hours";
-$lang->report->validRate     = "Efficiency";
-$lang->report->validRateTips = "Solution is fixed or postponed / status is resolved or closed.";
+$lang->report->validRate     = "Valid Rate";
+$lang->report->validRateTips = "Solution is fixed/postponed or status is resolved/closed.";
 $lang->report->unplanned     = 'Unplanned';
 $lang->report->workday       = 'Hours/Day';
 $lang->report->diffDays      = 'Man-Day';
diff --git a/module/story/lang/en.php b/module/story/lang/en.php
index c77c26e27c..84cd91642d 100644
--- a/module/story/lang/en.php
+++ b/module/story/lang/en.php
@@ -10,7 +10,7 @@
  * @link        http://www.zentao.net
  */
 $lang->story->create      = "Story";
-$lang->story->batchCreate = "Batch Create Story";
+$lang->story->batchCreate = "Batch Create";
 $lang->story->change      = "Change";
 $lang->story->changed     = 'Change';
 $lang->story->review      = 'Review';
@@ -185,8 +185,8 @@ $lang->story->needNotReview         = 'No Review';
 $lang->story->successSaved          = "Story saved!";
 $lang->story->confirmDelete         = "Do you want to delete this Story?";
 $lang->story->errorEmptyChildStory  = '『Subdivide Story』canot be blank.';
-$lang->story->mustChooseResult      = 'Please select a result.';
-$lang->story->mustChoosePreVersion  = 'Please select a Version to revert.';
+$lang->story->mustChooseResult      = 'Select a result.';
+$lang->story->mustChoosePreVersion  = 'Select a Version to revert to.';
 
 $lang->story->form = new stdclass();
 $lang->story->form->area      = 'Story Scope';
diff --git a/module/task/lang/en.php b/module/task/lang/en.php
index c5387971c0..f68d5ca8f9 100644
--- a/module/task/lang/en.php
+++ b/module/task/lang/en.php
@@ -61,7 +61,7 @@ $lang->task->hour              = 'Hour';
 $lang->task->consumedThisTime  = 'Hour';
 $lang->task->leftThisTime      = 'Remained';
 $lang->task->datePlan          = 'Plan';
-$lang->task->estStarted        = 'Start Date';
+$lang->task->estStarted        = 'Estimate Start';
 $lang->task->realStarted       = 'Actual Start';
 $lang->task->date              = 'Date';
 $lang->task->deadline          = 'Finish Date';
diff --git a/module/user/lang/en.php b/module/user/lang/en.php
index bf9fc5e61e..060fbaadea 100644
--- a/module/user/lang/en.php
+++ b/module/user/lang/en.php
@@ -79,17 +79,17 @@ $lang->user->todo        = 'To-Do';
 $lang->user->story       = 'Story';
 $lang->user->dynamic     = 'Dynamic';
 
-$lang->user->openedBy    = 'Opened by him';
-$lang->user->assignedTo  = 'Assigned to him';
-$lang->user->finishedBy  = 'Finished by him';
-$lang->user->resolvedBy  = 'Resolved by him';
-$lang->user->closedBy    = 'Closed by him';
-$lang->user->reviewedBy  = 'Reviewed by him';
-$lang->user->canceledBy  = 'Cancelled by him';
+$lang->user->openedBy    = 'Opened';
+$lang->user->assignedTo  = 'Assigned';
+$lang->user->finishedBy  = 'Finished';
+$lang->user->resolvedBy  = 'Resolved';
+$lang->user->closedBy    = 'Closed';
+$lang->user->reviewedBy  = 'Reviewed';
+$lang->user->canceledBy  = 'Cancelled';
 
-$lang->user->testTask2Him = 'His Build';
-$lang->user->case2Him     = 'His Case';
-$lang->user->caseByHim    = 'Case Open by Him';
+$lang->user->testTask2Him = 'Build';
+$lang->user->case2Him     = 'Case Assigned';
+$lang->user->caseByHim    = 'Case Opened';
 
 $lang->user->errorDeny    = "Sorry, your access to <b>%s</b> Module <b>%s</b> Feature has been denied. Please contact Admin to get permission. Click Back to return.";
 $lang->user->loginFailed  = "Login failed. Please check your account and password.";