名词
中文翻译：螺丝螺母
同义词：
['bolt', 'screw', 'fastener']
例句：
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1.The screw nut holds the bolt in place.
螺丝螺母将螺栓固定住。
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2.He tightened the screw nut on the door to make sure it was secure.
他拧紧了门上的螺丝螺母，确保它牢固。
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3. The carpenter used a screw nut to hold the wooden planks together.
木匠用螺丝螺母将木板固定在一起。