Definition: to start dealing with bad or illegal behaviour in a more severe way Level: C2
警方正在严厉打击城市中的毒品贩运。
Police are ___cracking ___down on drug trafficking in the city.
新市长承诺要严厉打击有组织犯罪。
The new mayor promised to ___crack ___down on organized crime.
为了提高安全性，学校决定严厉打击欺凌行为。
To improve safety, the school decided to ___crack ___down on bullying.
