题目内容
6. 他们已经采取行动阻止这些工厂向河里倾倒废物了。
6. They have taken action (s) to stop these factories (from) putting/ pouring waste into rivers.
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题目内容
6. 他们已经采取行动阻止这些工厂向河里倾倒废物了。
6. They have taken action (s) to stop these factories (from) putting/ pouring waste into rivers.