| 词汇 | crack down (on sb/sth) |
| 释义 | crack down (on sb/sth) (used about people in authority) to start dealing strictly with bad or illegal behaviour （指掌握权力者）严办，严惩，严厉对待（不良或违法的人或行为）: ◇the police have started to crack down on drug dealers. 警方已经开始严厉打击毒贩。 |
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