adv.往上游，向上游，在上游
adj.上游的

We paddled upstream for hours, enjoying the tranquility of the river.
我们划船逆流而上数小时，享受着河流的宁静。
The salmon swim upstream to spawn in their native rivers.
鲑鱼逆流而上游回它们出生的河流产卵。
The kayakers were determined to conquer the rapids and paddle upstream.
激流皮划艇者决心征服湍流，逆流而上。
The pollution upstream has contaminated the water supply for the entire town.
上游的污染已经污染了整个城镇的水源。
The new dam will prevent flooding in the towns upstream.
新建的大坝将防止上游城镇发生洪水。
The river's current was too strong for our small boat to navigate upstream.
河流的水流太强，我们的小船无法逆流而上。
The industrial plants upstream have been ordered to reduce their emissions.
已下令上游的工业厂房减少排放。
The fisherman decided to move upstream where the water was clearer.
渔夫决定向上游移动，那里的水更清澈。
The government is planning to build a series of hydroelectric dams upstream.
政府计划在上游建造一系列水电大坝。
The environmental group is campaigning to clean up the polluted river upstream.
环保组织正在发起运动，清理上游受污染的河流。