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。
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。
The utility model used as an indoor smoke gas filter appliance not only can protect the health of an indoor passive smoker, but also can keep the indoor air from being polluted.
本实用新型作为室内一种烟气过滤器具，不仅能够保护室内被动吸烟者身体健康，而且可保持室内空气不被污染。
Peruvian want to prevent their environment from being polluted by other countries, just as we do. MNC should have standard of code of practice to protect the local environment and community.
正像我们不希望看到跨国公司在中国污染环境一样，秘鲁人也不希望别国公司污染他们的环境。
More than half the world's population lives in cities, the most light-polluted of which prevent even the Big Dipper from being seen.
超过半数的地球人口生活在城市，那些光污染最为严重的城市甚至连北斗七星也看不到。
I can see aerogel being used for everything from filtering polluted water to insulating against extreme temperatures and even for jewellery.
我认为它能够用于任何地方，从过滤脏水到隔热，甚至可以用于珠宝首饰。
Green Chemistry is the subject which prevents being polluted from the beginning. It has been paid much more attention in recent years.
绿色化学是一门从源头上阻止污染的化学，近年来逐渐被关注。
This is designed to keep things from dropping onto the ground, which can prevent your child's cup, feeding-bottle, toys from being lost or polluted.
是以防止掉落在地上的一个产品，防止让您的孩子的杯、奶瓶、玩具丢失或弄脏。
This is designed to keep things from dropping onto the ground, which can prevent your child's cup, feeding-bottle, toys from being lost or polluted.
是以防止掉落在地上的一个产品，防止让您的孩子的杯、奶瓶、玩具丢失或弄脏。
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