diff --git a/interface/ri_data.py b/interface/ri_data.py
index 1ae9ef8..f8933bd 100644
--- a/interface/ri_data.py
+++ b/interface/ri_data.py
@@ -409,7 +409,7 @@ p_node - xml node (parent node)'''
             return Raid.get_size(dev)
         
     @staticmethod
-    def is_check_data(dev,dr,fs):
+    def check_data(dev,dr,fs):
         '''check mount point is feasible. dr is mount point, dev is device'''
         # check mount point is existent or not
         if dr and dr in [ m.directory for m in MountPoint.dict.values() if m.device !=dev ]:
diff --git a/interface/ri_tk_cmd.py b/interface/ri_tk_cmd.py
index 1fac652..8f286c7 100644
--- a/interface/ri_tk_cmd.py
+++ b/interface/ri_tk_cmd.py
@@ -66,7 +66,6 @@ def mp_top_init():
 def mp_top_ok():
     ''' mount dir top window OK '''
     l = []
-    isdir_feasible = True
     for itm in eval(display.var_dict['mount.list'].get()):
         dev = itm.split()[0]
         dev2 = display.var_dict['mp_top_dev'].get()
@@ -85,13 +84,13 @@ def mp_top_ok():
             else:
                 fs = ' '
 
-            # check mount point is feasible
-            if ri_data.MountPoint.is_check_data(dev,dr,fs):
+            # check mount point is feasible or not
+            isdir_feasible = ri_data.MountPoint.check_data(dev,dr,fs)
+            if isdir_feasible:
                 s2 = dev.ljust(10) + dr.ljust(10) + fs.ljust(10) + fm.ljust(4) + sz.ljust(6) + ri_data.Partition.unit
                 ri_data.MountPoint.change(dev, dr, fs, fm)
                 l.append(s2)
             else:
-                isdir_feasible=False
                 l.append(itm)
         else:
             l.append(itm)
diff --git a/xml/interface.xml b/xml/interface.xml
index 7bbd981..1d4a001 100644
--- a/xml/interface.xml
+++ b/xml/interface.xml
@@ -858,7 +858,7 @@ row 4 |                                                            |
   </widget>
 
     <text key='#check-mount-point'>
-        <English>The mount point has been used or the mount point is special, dosen't mount it, plase look help information!</English>
+        <English>The mount point couldn't be mounted on because it has been used or it's particular. Plase read help infomation!</English>
         <Chinese>挂载点已经被使用或者这个是一个特殊的挂载点, 不能这样挂载, 请看帮助文档</Chinese>
     </text>   
 
@@ -947,24 +947,24 @@ row 4 |                                                            |
   </text>
 
   <text key='#raid-add-active-numbers'>
-      <English>When make a raid0 or raid1, the partitions on the active display frame, must be more than one!</English>
+      <English>Making a raid0 or raid1 needs two or more partitions.</English>
       <Chinese>当制作raid0或raid1时，硬盘分区必须两个或两个以上。</Chinese>
   </text>
 
   <text key='#raid-add-active-numbers-2'>
-      <English>When make a raid5, the partitions on the active display frame, must be more than two!</English>
+      <English>Making a raid5 needs three or more partitions</English>
       <Chinese>当制作raid5的时,硬盘分区必须三个或三个以上。</Chinese>
   </text>
 
   <text key='#raid-add-warning'>
-    <English>When adding a raid device, active list can not be null, and one raid level must be selected!</English>
+    <English>If you want to make a raid, you should choose a level of raid, and the active device list mustn't be null.</English>
     <Chinese>当添加raid设备时，使用设备列表不能为空，并且必须选定一个raid级别。</Chinese>
   </text>
 
   
 
   <text key='#raid-delete-warning'>
-    <English>You can not delete an existing raid, which is not made by I (install program)!</English>
+    <English>An existing raid, which wasn't made during this installation process, can't be deleted.</English>
     <Chinese>对于一个早已存在的raid设备（不是由安装程序创建的），你不能把它删除。</Chinese>
     </text>
 
@@ -1045,7 +1045,7 @@ row 4 |                                                            |
    </text>
 
   <text key='#Installation-confirmation'>
-    <English>installation Configuration is completed, press the OK button to start the installation</English>
+    <English>Installation configure finish. Press "ok" to start the installation.</English>
     <Chinese>安装配置完成，按确定键开始安装</Chinese>
   </text>