At every step something can go wrong, your mental model can get out of sync with the state of the computer, or you might remember a button name incorrectly.
在以上的每一步都有可能出错，你的心智模型可能无法和电脑的状态相同步，或者你可能记错了按钮的名字。
Remember to save the changes to your document every few minutes in case something goes wrong with your computer.
记住每隔几分钟就把更改的文件保存到你的文档中以防你的电脑出现故障。
Remember to save the changes to your document every few minutes in case something goes wrong with your computer.
记住每隔几分钟就把更改的文件保存到你的文档中以防你的电脑出现故障。
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