upstream

逆流地；向上游英释中释advalong a river, in the opposite direction from the way the water is flowing

向上游的；逆流而上的英释中释adjUpstream is also an adjective

上游部门中释n

1 upstream slope,上游坡；上游坡度

2 upstream water,上层带水

3 upstream face,n. 上游面；入水面

4 swimming upstream,脱泳而出（电影名称）

5 upstream side,上游侧

1 Fish instinctively fight their way upstream against the current..鱼本能地奋力逆流而上。

2 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。