clamped down is clamp down's Past Tense

clamp down

US 
UK 
  • na.压迫;取缔;勒紧;强制执行(宵禁等)
Simple Present:clamps down  Present Participle:clamping down  Past Tense:clamped down  
na.
1.
箝制,压迫;取缔;勒紧
2.
强制执行(宵禁等)

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard