propping up is prop up's Present Participle

prop up

US 
UK 
  • na.(把…)撑住;给…撑腰
Simple Present:props up  Present Participle:propping up  Past Tense:propped up  

Sample Sentence

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