短语词组短语clamp down on suppress 钳制clamp down on speculators 镇压投机商Clamp down on something 严格的clamp down on corruption 严厉打击腐败clamp down on illegal sales 取缔非法销售;确保;确保酒品业发挥作用clamp down on illegal activities 严厉打击非法活动 返回 clamp down on