Pollution—in general, recycling materials can produce less pollution, helping to keep our environment clean.
污染——一般来说，回收材料可以产生较少的污染，有助于保持我们的环境清洁。
Keep our environment clean and tidy.
保持我们的环境干净、整洁。
Shall we keep our environment clean?
游戏介绍我们应保持环境清洁？
It's our duty to keep our environment clean and tidy.
保持环境的干净与整洁是我们的责任。
Its our duty to keep our environment clean and tidy.
保持我们的环境干净整洁是我们的责任。
It's our duty to keep our environment clean and tidy.
是我们的责任保持我们的环境干净和整洁。
It is our duty to keep our environment clean and tidy.
保护我们的环境干净和整洁是我们的责任。
It's our duty to keep our environment clean and tidy.
保持我们的环境干净整洁是我们的责任。
It is our duty to keep our environment clean and tidy.
保持环境的干净整洁是我们每一个人的职责。
First of all, doing something useful to keep our environment clean is necessary.
首先，做一些有助于保持环境干净的事是很必需的。
Encourage your family, friends, neighbors and colleagues to keep our environment clean.
鼓励你的家人、朋友、邻居和同事保持环境清洁。
It can pollute plants, sometimes it can kill lots of fish. We must keep our environment clean and tidy.
它可以污染植物，有时它可以杀死大量的鱼，我们必须保持环境整洁。
Please keep your room orderly and clean. Our external environment is often a reflection and an influence on our internal state of mind.
请保持房间的整齐丶清洁。我们外在的环境往往反应丶并影响我们的内在心境。
We should do our best to protect our living environment and keep mountains green, water clean, and the sky blue.
我们应竭尽所能，以保护我们的生存环境，保持山绿，水清，天蓝。
Therefore, we should realize the importance of taking care of our forests. We should do our best to protect our living environment and keep our mountains green, the water clean, and the sky blue.
因此，我们应该了解的照顾我们森林的重要性。我们应尽力保护我们的生活环境和使我们山上绿色、清洁、水、蓝色的天空。
Therefore, we should realize the importance of taking care of our forests. We should do our best to protect our living environment and keep our mountains GREen, the water clean, and the sky blue.
因此，我们应该认识到保护森林的重要性，尽最大努力保护我们的生存环境，保持山绿、水清、天蓝。
We shall always keep our children and the environment clean.
我们要保持我们的孩子洁净，环境清洁。
The future will see catalysts do even more to keep our environment safe and clean.
今后人们可以看到催化剂在使我们的环境安全和清洁方面会发挥更大作用。
We should try our best to keep the environment clean.
我们应该想方设法保持干净的环境。
Therefore, we should realize the importance of taking care of our forests. We should do our best to protect our living environment and keep mountains green, water clean, and the sky blue.
因而，我们应该意识到保护森林的重要性，我们应该尽全力保护生存环境，保护青山，绿水和蓝天。
Therefore, we should realize the importance of taking care of our forests. We should do our best to protect our living environment and keep mountains green, water clean, and the sky blue.
因而，我们应该意识到保护森林的重要性，我们应该尽全力保护生存环境，保护青山，绿水和蓝天。
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