upstate的英语例句
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Cities upstream use the river to get rid of sewage.
上游的城市将污水排放到河里。
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A barrage would halt the flow upstream and lift the water level.
一道拦河坝将会在上游拦住水流,抬升水位。
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The barriers are lethal to fish trying to swim upstream.
这些障碍物对于想要往上游游动的鱼儿来说是致命的。
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