diff --git a/MainWindow.xaml b/MainWindow.xaml
index 2b14ac4..b953548 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -7,28 +7,27 @@
         mc:Ignorable="d"
         Title="SUNLIGHT_CDKEY" Height="400" Width="600">
     <Grid>
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,10,0,0" TextWrapping="Wrap" Text="SN:" VerticalAlignment="Top" Width="170" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,10,0,0" TextWrapping="Wrap" Text="设备识别码:" VerticalAlignment="Top" Width="170" FontSize="24"/>
         <TextBox x:Name="sn_id" HorizontalAlignment="Left" Height="40" Margin="170,10,0,0" VerticalAlignment="Top" Width="340" FontSize="24" 
                  PreviewTextInput="AlphanumericValidationTextBox" InputMethod.IsInputMethodEnabled="False"/>
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,55,0,0" TextWrapping="Wrap" Text="DURATION:" VerticalAlignment="Top" Width="170" FontSize="24"/>
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,55,0,0" TextWrapping="Wrap" Text="MONTHS" VerticalAlignment="Top" Width="170" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,55,0,0" TextWrapping="Wrap" Text="期限:" VerticalAlignment="Top" Width="170" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,55,0,0" TextWrapping="Wrap" Text="" VerticalAlignment="Top" Width="170" FontSize="24"/>
         <ComboBox x:Name="DURATION"  HorizontalAlignment="Left" Height="40" Margin="170,55,0,0" VerticalAlignment="Top" Width="220"  DropDownClosed="DURATION_DropDownClosed" FontSize="24">
             <ComboBoxItem Content=""></ComboBoxItem>
-            <ComboBoxItem Content="1"></ComboBoxItem>
-            <ComboBoxItem Content="2"></ComboBoxItem>
-            <ComboBoxItem Content="3"></ComboBoxItem>
-            <ComboBoxItem Content="6"></ComboBoxItem>
-            <ComboBoxItem Content="12"></ComboBoxItem>
-            <ComboBoxItem Content="FOREVER"></ComboBoxItem>
+            <ComboBoxItem Content="1月"></ComboBoxItem>
+            <ComboBoxItem Content="3月"></ComboBoxItem>
+            <ComboBoxItem Content="6月"></ComboBoxItem>
+            <ComboBoxItem Content="12月"></ComboBoxItem>
+            <ComboBoxItem Content="长效"></ComboBoxItem>
         </ComboBox>
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,100,0,0" TextWrapping="Wrap" Text="TIME:" VerticalAlignment="Top" Width="88" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,100,0,0" TextWrapping="Wrap" Text="时间:" VerticalAlignment="Top" Width="88" FontSize="24"/>
         <TextBox x:Name="T_Y" Text="0" HorizontalAlignment="Left" Height="40" Margin="170,100,0,0" VerticalAlignment="Top" Width="220" FontSize="24" InputMethod.IsInputMethodEnabled="False" PreviewTextInput="Tb_KeyFloating_Y" />
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,100,0,0" TextWrapping="Wrap" Text="YEAR" VerticalAlignment="Top" Width="170" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,100,0,0" TextWrapping="Wrap" Text="年" VerticalAlignment="Top" Width="170" FontSize="24"/>
         <TextBox x:Name="T_M" Text="0" HorizontalAlignment="Left" Height="40" Margin="170,145,0,0" VerticalAlignment="Top" Width="220" FontSize="24" InputMethod.IsInputMethodEnabled="False" PreviewTextInput="Tb_KeyFloating_M" />
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,145,0,0" TextWrapping="Wrap" Text="MONTHS" VerticalAlignment="Top" Width="170" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,145,0,0" TextWrapping="Wrap" Text="月" VerticalAlignment="Top" Width="170" FontSize="24"/>
         <TextBox x:Name="T_D" Text="0" HorizontalAlignment="Left" Height="40" Margin="170,190,0,0" VerticalAlignment="Top" Width="220" FontSize="24" InputMethod.IsInputMethodEnabled="False" PreviewTextInput="Tb_KeyFloating_D" />
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,190,0,0" TextWrapping="Wrap" Text="DAY" VerticalAlignment="Top" Width="170" FontSize="24"/>
-        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,235,0,0" TextWrapping="Wrap" Text="CDKEY:" VerticalAlignment="Top" Width="88" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="400,190,0,0" TextWrapping="Wrap" Text="日" VerticalAlignment="Top" Width="170" FontSize="24"/>
+        <TextBlock HorizontalAlignment="Left" Height="40" Margin="20,235,0,0" TextWrapping="Wrap" Text="密钥:" VerticalAlignment="Top" Width="88" FontSize="24"/>
         <TextBox x:Name="cdk" HorizontalAlignment="Left" Height="40" Margin="170,235,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="342" FontSize="24"/>
         <Button Content="OK" HorizontalAlignment="Left" Height="40" Margin="170,280,0,0" VerticalAlignment="Top" Width="85" Background="#FFE6E6E6" Click="Button_Click"/>
 
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 1eb47f7..cede863 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -87,27 +87,23 @@ namespace SUNLIGHT_CDKEY
             y = int.Parse(T_Y.Text);
             m = int.Parse(T_M.Text);
 
-            if (DURATION.Text == "1")
+            if (DURATION.Text == "1月")
             {
                 m += 1;
             }
-            else if (DURATION.Text == "2") 
-            {
-                m += 2; 
-            }
-            else if (DURATION.Text == "3") 
+            else if (DURATION.Text == "3月") 
             {
                 m += 3;
             }
-            else if (DURATION.Text == "6") 
+            else if (DURATION.Text == "6月") 
             {
                 m += 6;
             }
-            else if (DURATION.Text == "12") 
+            else if (DURATION.Text == "12月") 
             {
                 y += 1;
             }
-            else if (DURATION.Text == "FOREVER") 
+            else if (DURATION.Text == "长效") 
             {
                 y = 2099;
                 m = 12;