| 词组 | crack down on |
| 释义 | crack down on crack down (on (someone/something)) to take strong action to stop something bad from continuing. The university is taking steps to crack down on underage drinking on campus. Countries that used to ignore terrorist groups in their midst are starting to crack down. |
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英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。