adj.上游的；向水源的
adv.向上游地
The steamboat could sail upriver, against the flow. 汽船可以逆流而上。
Leaped over the wall; salmon leaping upriver. 跃过围墙；鲑鱼溯河跃行而上
Our ship drived towards upriver. 我们的船向上游驶去。
Our ship goes on with along upriver. 我们的船向上游驶去。
We have a need to travel upriver. 我们需要逆流而上.
