经济学人下载:针叶换取水资源(2)

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1.pollutant 污染物

A steady stream of California traffic clogs the air with pollutants.
加利福尼亚川流不息的车流使空气中充斥着污染物。

2.forage for 搜寻

They were forced to forage for clothing and fuel.
他们不得不去寻找衣服和燃料。