upstream

形容词 upstream:

1. in the direction against a stream's current

副词 upstream:

1. toward the source or against the current
   同义词：upriver

1. We paddled (the canoe) slowly upstream.
   我们慢慢地划著(独木舟)逆流而上。
2. The falls upstream are full of salmon.
   该瀑布上流有许多大麻哈鱼。