They start in our wastewater, then flow into rivers and out to the sea, where they are eaten by sea animals.
首先是我们的废水，接着便流入河海，被海里的动物吞食。
Rivers eventually flow into the sea, carrying their pollution with them.
河流最终流入海洋，污染物也随之入海。
Rivers eventually flow into the sea, carrying their pollution with them.
河流最终流入海洋，污染物也随之入海。
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