downstream

形容词 downstream:

1. in the direction of a stream's current

副词 downstream:

1. away from the source or with the current
   同义词：downriver

1. Is the water polluted at source or further downstream?
   河水是在源头还是在流出之後受到污染的？
2. You can cross the river a short distance below (ie downstream from) the waterfall.
   在瀑布下游附近可以过河。
3. The logs are drifted downstream to the mill.
   那些原木沿河顺水漂到工厂。
4. Downstream the river twists and turns a lot.
   这条河的下游弯弯曲曲。

down.stream

adj.（形容词）
In the direction of a stream`s current.
顺流的：顺着溪流的方向
adv.（副词）

Down a stream.
顺流