Polluted air and water are harmful to people's health.
污染的空气和水对人们的健康是有害的。
The polluted air and water are harmful to people's health.
被污染的空气和水对健康有害。
Water and air are easy to be polluted.
水和空气容易被污染。
The polluted water and air are harmful to people's health.
污染了的水和空气对人的健康有害。
The polluted water and air are harmful to people's health.
污染了的水和空气对人的健康有害。
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