名词
中文翻译：Unknown
同义词：
['turn back', 'turn around', 'turn over']
例句：
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1. 倒退；后退；回退2.
在比赛中
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3.
在谈话中
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1. The car backed up the driveway because of the snow.
由于雪，汽车开进了车道。
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2. The teacher turned around and asked the students to explain the problem.
老师转过身来，让学生们解释这个问题。
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3. After a long discussion, they turned over the topic and moved on to another one.
经过长时间的讨论后，他们改变了话题并继续下一个话题。