popped up is pop up's Past Tense

pop up

US 
UK 
  • n.弹跳装置;暗冒口
  • v.上托;发射;突然出现
  • Web接一个的问题和错误蹦出来;弹出;出来的
Simple Present:pops up  Present Participle:popping up  Past Tense:popped up  

Sample Sentence

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