Special attention should be paid to preventing our earth from being polluted.
应该特别注意防止我们的地球被污染。
Why not prevent the air from being polluted?
为什么不阻止空气被污染？
We must prevent the water from being polluted.
我们必须防止水被污染。
We have to prevent the air from being polluted.
我们必须阻止空气被污染。
We must PageRankevent the water from being polluted.
我们必须防止水被污染。
How can we prevent the environment from being polluted?
我们怎样才能防止环境被污染呢？
We must try to prevent our environment from being polluted.
我们应该防止环境受到污染。
Measures should be taken to stop the river from being polluted.
必须采取措施来防止河流受到污染。
Measures must be taken to prevent the river from being polluted.
必须采取一定的措施阻止河水被污染。
I try to protect my pure sky from being polluted by evil and falsity.
我固守那份纯净的天空，不让邪恶和虚伪轻易污染。
To prevent the air from being polluted is what we're now researching.
阻止空气污染是我们正在研究的课题。
We should try our best to prevent the environment from being polluted.
我们应该尽全力防止环境被污染。
He tries to protect his pure sky from being polluted by evil and falsity.
他固守那份纯净的天空，不让邪恶和虚伪轻易污染。
Therefore, we must take measures to prevent the earth from being polluted.
因此，我们必须采取措施防止地球不受污染。
It's high time we took immediate measures to protect our earth from being polluted.
我们应该马上采取措施来保护我们的环境免受污染。
In a word, we must take action to save water and prevent water from being polluted.
总之，我们必须采取行动节约用水，防止水受到污染。
Of course, they have promised to do something to prevent the water from being polluted.
当然，他们会承诺采取措施来保护水污染。
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。
To prevent the world from being polluted by cars, we have to make some changes in our lives.
要想阻止全球化的汽车污染，我们需要对自己的生活方式做出适当的改变。
How to improve the indoor air quality and how to prevent the indoor air from being polluted were explained.
系统阐述了改善室内空气质量及防治室内空气污染的方法。
We must keep on fighting until we find ways to protect the environment from being polluted, and do away with pollution.
我们要坚持斗争，直到我们找到解决环境污染的办法。
Without doubt, something must be done to prevent this famous river from being polluted by the waste water piped from cities.
毫无疑问，必须做些事情来阻止这条著名的河流被从城市里输送过来的的污水污染。
What's more, a lot more buses which burn cleaner fuel, such as CNG or LPG, are put into use, to prevent air from being polluted.
还有，更多的公共汽车投入使用，它们都使用环保燃料，以防空气受到污染。
In order to make rivers and lakes clean and prevent water from being polluted, we must do something to stop all sorts of pollution.
为了保持河流湖泊清洁，防止水污染，我们必须采取措施，阻止各种污染。
Therefore, the quality of irrigation water has to be inspected during retained process to prevent the soil and groundwater from being polluted.
因此，蓄水过程中需注意水源之品质，以避免土壤与地下水受污染。
So it is a important task of waterhead management that understanding the foundation of water pollution and preventing water from being polluted.
了解水污染源，防止水污染产生和进一步恶化是水源管理中的一项重要任务。
Owing to many kinds of pollution factors for the groundwater in the area, it is necessary to adopt measures to prevent the groundwater from being polluted.
该区地下水存在多种污染因素，需要采取措施，防止地下水的进一步污染。
Owing to many kinds of pollution factors for the groundwater in the area, it is necessary to adopt measures to prevent the groundwater from being polluted.
该区地下水存在多种污染因素，需要采取措施，防止地下水的进一步污染。
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