acts up is act up's Simple Present

act up

US 
UK 
  • na.开玩笑;(机器等)出毛病
Simple Present:acts up  Present Participle:acting up  Past Tense:acted up  

Sample Sentence

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