sitting up is sit up's Present Participle

sit up

US 
UK 
  • na.【体】仰卧起坐
  • Web坐起来;坐位
Simple Present:sits up  Present Participle:sitting up  Past Tense:sat up  
na.
1.
【体】仰卧起坐

Sample Sentence

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