我夹克上的纽扣卡住了,我解不开。

The buttons on my jacket are stuck, and I can't undo them.

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The buttons on my jacket are stuck, and I can't undo them.

undo 是由前缀 un-(表示“相反、取消”)和动词 do(做)组成的动词,字面意思是“取消做”,引申为“解开、松开”。

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