动词短语
中文翻译：放松
同义词：
['lose the reins', 'let off the leash', 'relax']
例句：
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1. Sheslacked off during the exam and didn't study enough.
她在考试期间放松了，没有充分复习。
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2.The team needs to loosen up and be more relaxed in their approach.
团队需要放松，在方法上更加灵活。
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3.The driver slacked off and drove too fast, endangering everyone's lives.
司机放松了警惕，开得太快，危及了所有人的生命。