- 1
Start to punish something much more strictly than before. It is what police and governments do, so you see it in the news a lot. It almost always comes with "on": crack down on drugs, crack down on fake goods. No object without "on".
嚴厲取締、掃蕩
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
crack downverb/kɹæk ˈdaʊn/
- 1
To take harsh action (against), as when enforcing a law or rule more stringently than before.
- The authorities are trying to crack down on drunk driving during the holidays.
- At this point they're hoping that the government will crack down and will put an end to deceptive rental offerings.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。