clamps down
美英
        - na.箝制;取缔;勒紧;强制执行(宵禁等)
 
第三人称单数:clamps down 现在分词:clamping down 过去式:clamped down
clamps down2
        
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      第三人称单数:clamps down 现在分词:clamping down 过去式:clamped down
clamps down