upstream

美 [ʌpˈstrim]英 [ʌpˈstriːm]
  • adv.逆流;向(或在)上游
  • adj.(石油工业等)上游的;溯流而上的
  • 网络上行;逆流而上;向上游

upstreamupstream

upstream

1.~ (of/from sth)向(或在)上游;逆流along a river, in the opposite direction to the way in which the water flows

3
7
He said there are mountaintop mining sites on several sides of his home and that valley fills upstream taint the water.

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