ADV [ADVERB after verb] [beADVERB]順流而下;向(或在)下遊方向 Something that is moving downstream is moving towards the mouth of a river, from a point further up the river. Something that is downstream is further towards the mouth of a river than where you are. 順流而下;向(或在)下遊方向 [Also + of/from]
We had drifted downstream.
我們漂向了下遊。
...a district called Lupitu, which in fact was downstream of the dam.
叫勒普頓的地區,實際上在大壩的下遊。
Communities downstream have been alerted.
下遊的社區已經接到了預警。
Downstream is also an adjective.
Breaking the dam could submerge downstream cities such as Wuhan.