他衬衫上掉了一颗纽扣,不得不缝回去。

他衬衫上掉了一颗纽扣,不得不缝回去。

He lost a button from his shirt and had to sew it back on.

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He lost a button from his shirt and had to sew it back on.

button 是名词,指"纽扣",通常是用塑料、金属或贝壳等材料制成的小圆片,缝在衣物上用于扣合。

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