名词
中文翻译：回缩弹簧
同义词：
['retreating spring', 'retracted spring']
例句：
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1.The spring in the air is a sign that winter is coming.
空气中的春天预示着冬天的到来。
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2.The spring cleaning is over, and I'm ready to start working on my new project.
大扫除结束了，我准备开始着手我的新项目了。
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3. The car's spring was broken, and it wouldn't start.
车的弹簧坏了，发动不了。