短语中文翻译
中文翻译：有一颗螺丝松了
同义词：
['have a bearing', 'have a loose screw']
例句：
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1.The car's engine is having a cog loose, so it won't start.
这辆车的引擎有一颗螺丝松了，所以它发动不了。
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2.The old clock has a cog loose; it needs to be fixed.
旧时钟有一颗螺丝松了，需要修理。
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3. He had a cog loose in his bicycle chain and couldn't ride it for a week.
他的自行车链条有一颗螺丝松了，一个星期都不能骑。