The polluted air becomes poisonous to health, so it is the high time that we took actions to protect the environment.
被污染的空气有害健康，所以我们是时候采取行动保护环境了。
It is people's fault to make the environment be polluted, they should not chase the profit while taking the cost of polluting the environment.
环境被污染是人们的错，他们不应该为了追求利润而以牺牲环境为代价。
With the rapid development of industry of pharmacy, it is more and more evident that waste water of pharmacy polluted the environment.
随着我国制药工业的迅猛发展，制药废水对环境的污染也越来越明显。
In the course of recovering waste and regeneration of it, the environment is seriously polluted because of weak management and backward technology.
在废弃物回收再生过程中，由于管理不力、艺落后，使环境受到严重污染。
It is necessary for us to take some actions to prevent the environment from being polluted.
我们有必要采取一些措施来防止环境污染。
It is necessary for us to take some actions to prevent the environment from being polluted.
我们有必要采取一些措施来防止环境污染。
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