柯林斯詞典crack down (cracking,cracked,cracks) 1. PHRASAL VERB If people in authority crack down on a group of people, they become stricter in making the group obey rules or laws. 嚴(yán)加琯制; 嚴(yán)加治理 The government has cracked down hard on those campaigning for greater democracy. 政府嚴(yán)厲打擊了那些爭取更多民主的人。2. →see also crackdown 返回 crack-down