1、
With the keyboard, press Insert to toggle between overwrite mode and insert mode.
使用键盘, 按插入键切换覆盖模式和插入模式.
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2、
When you're finished with insert mode, press the ESC key to return to command mode.
当你被用完插入物模态的时候, 按ESC键回到命令模态.
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3、
