Wastewater from factories polluted the river为什么用polluted

我们要坚强2022-10-04 11:39:542条回答

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edisionmoe 共回答了23个问题 | 采纳率82.6%
pollute 是这个句子的谓语动词,“污染”的意思.而这个污染已经发生了,所以用了过去时polluted.
翻译:来自工厂的废水污染了河水.
1年前
nnSHOW 共回答了8个问题 | 采纳率
工厂排放的废水污染了河流。用的是动词的过去式。
1年前

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