名词
中文翻译：回旋
同义词：
['inversion', 'rotation']
例句：
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1.The car's engine is involuted, which causes it to run poorly.
汽车的引擎是回旋的，这导致它运行得不好。
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2. The scientist discovered a new way of involution that could improve the efficiency of the machine.
科学家发现了一种新的回旋方式，可以提高机器的效率。
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3. The team performed an involution on the ball before they played.
在比赛开始前，队伍对球进行了回旋处理。