crack down on informal take severe measures against 〈非正式〉对…采取严厉措施; 镇压; 制裁: we need to crack down hard on workplaces that break safety regulations. 我们必须严惩不守安全规则的工场。 crack down on严加取缔;镇压:We should crack down on gambling,for many people have been ruined by it. 我们应当严厉取缔赌博,因为许多人都被它毁掉了。 |