名词中文翻译
中文翻译：扣环螺母
同义词：
['bolt', 'nut', 'fastener例句：1. The bolts on the door are rusted and need to be tightened.（门上的螺栓生锈了，需要拧紧。）']
例句：
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1. The bolts on the door are rusted and need to be tightened.
门上的螺栓生锈了，需要拧紧。
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2.The nuts were difficult to remove from the screws.
从螺丝上很难拔出这些螺母。
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3. The fasteners hold the shelves together securely.
这些紧固件将架子牢固地连接在一起。