| 短语 | clamp down (on sb/sth) |
| 释义 | ˌclamp ˈdown (on sb/sth)to take strict action in order to prevent sth, especially crime严厉打击（犯罪等）a campaign by police to clamp down on street crime警方严厉打击街头犯罪的运动related nounclampdown |
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