crack down [kræk daʊn]

例句:

• The police ran a sting operation to crack down on illegal guns.
  警方展开诱捕行动以严打非法枪支。
  
• The House voted today to crack down on banks that launder drug money.
  众议院今天表决打击为毒资洗钱的银行。
  
• The group has promised to crack down on tax havens.
  来自VOA
• He said the security forces would continue to crack down hard on the protestors.
  他说安全部队会继续严厉镇压抗议者。
  
• He also pledged to crack down on corruption.
  来自WSJ
• Some residents argue that officials should crack down more vigorously.
  来自WSJ