up draft

US 
UK 
  • un.上向通风;上升气流;上升流
  • Web向上通风
un.
1.
上向通风
2.
上升气流
3.
上升流

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