up stream

US 
UK 
  • na.向上游
  • Web逆流而上;上行;相反的方向称上游
na.
1.
逆流,向上游

Sample Sentence

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