名词
中文翻译：Unknown
同义词：
['1. button', '2. fastener', '3. fastening']
例句：
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1.She carefully put the button on her shirt.
她小心翼翼地把纽扣放在衬衫上。
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2.The fasteners on the bag are sturdy and reliable.
这个包上的扣件结实可靠。
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3. The fastening of the car door was tight enough to hold it shut.
汽车门的扣合紧实到可以锁住。