upstream sale向上销售
Upstream Color逆流的色彩;逆流的颜色
Hide Upstream隐藏上级;潜藏上级
upstream face入水面;[水利] 上游面;上游面;吸力面
upstream line吸入管道;上游管线;吸引管线;翻译
upstream gain上游效益
upstream deposits上游沉积物
upstream subsidy上游补贴
Upstream Channel上行信道;上游河槽
ADV（副词） Something that is moving upstream is moving towards the source of a river against the current, from a point further down the river. Something that is upstream is towards the source of a river. 向上游
Salmon manage to swim upstream to lay their eggs.
三文鱼设法游到上游产卵。
ADJ（形容词） Upstream is also an adjective. 上游的 [ADJ n]
We'll go to the upstream side of that big rock.
我们将去那块大岩石的上游一侧。