动词
中文翻译：使变慢
同义词：
['slow down', 'decelerate', 'delay']
例句：
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1.The car's engine is retarded by the heavy snow.
由于大雪，汽车的引擎变慢了。
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2.The teacher asked us to slow down our speech and think before answering questions.
老师要求我们说话前先思考再回答。
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3. The project was delayed due to unexpected technical issues.
由于技术问题，项目被推迟了。