man is fighting a battle against pollution.改为被动语态.

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man is fighting a battle against pollution.改为被动语态.

man is fighting a battle against pollution.改为被动语态.
man is fighting a battle against pollution.
改为被动语态.

man is fighting a battle against pollution.改为被动语态.
A bettle is being fought against pollution by man.

A battle against pollution is being fought by man.

人类在同污染作斗争

Pollution is fought a battle against by man.