diff --git a/app/controllers/memos_controller.rb b/app/controllers/memos_controller.rb
index 11d1d6e18..db212aef7 100644
--- a/app/controllers/memos_controller.rb
+++ b/app/controllers/memos_controller.rb
@@ -115,7 +115,7 @@ class MemosController < ApplicationController
   
   REPLIES_PER_PAGE = 20 unless const_defined?(:REPLIES_PER_PAGE)
   def show
-    #更新贴吧帖子留言对应的memo_messages的viewed字段
+    # 更新贴吧帖子留言对应的memo_messages的viewed字段
     query_memo_messages = @memo.memo_messages
     pre_count = REPLIES_PER_PAGE
 
diff --git a/app/controllers/poll_controller.rb b/app/controllers/poll_controller.rb
index 1bbcf9bb4..a8f2a11f1 100644
--- a/app/controllers/poll_controller.rb
+++ b/app/controllers/poll_controller.rb
@@ -28,6 +28,7 @@ class PollController < ApplicationController
       render_403
       return
     end
+    # 问卷消息状态更新
     query_course_poll = @poll.course_messages
     query_course_poll.each do |query|
       if User.current.id == query.user_id
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 496565c23..76f36b34d 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -756,16 +756,16 @@ module ApplicationHelper
     return ss
   end
 
-  # def time_tag(time, *args)
-  #   options  = args.extract_options!
-  #   text = distance_of_time_in_words(Time.now, time)
-  #   if @project
-  #     content_tag('acronym', text, options.reverse_merge(:title => format_time(time)))
-  #     # link_to(text, {:controller => 'activities', :action => 'index', :id => @project, :from => User.current.time_to_date(time)},options.reverse_merge(:title => format_time(time)))
-  #   else
-  #     content_tag('acronym', text, options.reverse_merge(:title => format_time(time)))
-  #   end
-  # end
+  def time_tag(time, *args)
+    options  = args.extract_options!
+    text = distance_of_time_in_words(Time.now, time)
+    if @project
+      content_tag('acronym', text, options.reverse_merge(:title => format_time(time)))
+      # link_to(text, {:controller => 'activities', :action => 'index', :id => @project, :from => User.current.time_to_date(time)},options.reverse_merge(:title => format_time(time)))
+    else
+      content_tag('acronym', text, options.reverse_merge(:title => format_time(time)))
+    end
+  end
 
   def syntax_highlight_lines(name, content)
     lines = []