工厂里冒出的浓烟，一片片被砍伐的树木，汽车排出的尾气，还有冰箱里排出的二氧化碳，等等。

Smoke from the factory, a film was cut down the trees, car exhaust emissions, carbon dioxide emissions are in the fridge, and so on.

youdao

工厂里冒出的浓烟，一片片被砍伐的树木，汽车排出的尾气，还有冰箱里排出的二氧化碳，等等。

Smoke from the factory, a film was cut down the trees, car exhaust emissions, carbon dioxide emissions are in the fridge, and so on.

youdao