Waste water from factories pollutes rivers改为被动语态1

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Waste water from factories pollutes rivers改为被动语态1
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Waste water from factories pollutes rivers改为被动语态1
Waste water from factories pollutes rivers改为被动语态
1

Waste water from factories pollutes rivers改为被动语态1
rivers are polluted by waste water from factories 希望对你有帮助