crack down on編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看crack down oncrack down on — 動詞動詞1. to take strong action to stop something bad or illegal1.動詞釋義嚴厲打擊to take strong action to stop something bad or illegal例句The police are cracking down on drug dealers.