crack down on

英 [kræk daʊn ɒn] 美 [kræk daʊn ɑːn]

• 镇压

crack down on的用法和样例：

例句

1. The riot police started to crack down on them.
   防暴警察开始对他们采取镇压行动。
2. They slapped the workers who had gone on strike.
   他们对参加罢工的工人大加镇压。

词汇搭配

• crack down on 镇压