我不小心改了字体,所以不得不快速撤销。

I accidentally changed the font, so I had to quickly undo it.

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I accidentally changed the font, so I had to quickly undo it.

undo 是由前缀 un-(表示"相反、取消")和动词 do(做)组成的复合动词,字面意思是"取消做某事",即"撤销、取消"某个操作。

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