1. The rubbish will pollute the environment .It is bed for our health.So please don't throw about the rubbish.
2. They measured noses in a sultry[sltri] summer afternoon.
3. The amount of water which is suitable to drink is less and less.
5. Maybe it's a once-in-a-life-time encounter; hence we should cherish each meeting.
6. If everyone makes contribution to protecting the environment, the world will become much more beautiful.
7. They encountered each other on a journey.
8. We should not spit in a public place/ cut down the trees.
9. 要时常告诉自己，笑是一种力量，能赶走一切悲伤。
11. Treat kindly the Earth is to treat kindly oneself.
12. Many rivers and lakes are seriously polluted.
13. Rescue the Earth is to rescue future.
14. It's everyone's duty to love and protect the environment.
15. We should not throw litter onto the ground.
16. Protection of the environment is everyone's responsibility.
17. Now people pay more attention to how to pretend our environment .With the development of science and technology,it becomes more important to pretend our environment.
18. As we know , water is very important to man.
19. It"s our duty to protect our environment.
20. Trees are very helpful and important for us.
21. We must pick up some rubbish and throw it into a dustbin.
22. But save square inch ground, stay with descendant Geng.
23. We should plant more flowers and trees.
24. How to protect our environment has been one of the most difficult problem in the world.
25. But some people don't care about it.
26. It's our duty to protect our environment。
27. Cherish the source of nature, totally make a living a life green.
28. It is very important to take care of our environment.
29. Something must be done to stop the pollution.
30. 你在的时候，你是一切；你不在的时候，一切是你！
31. We can't live without water.
32. The waste water will pour into rivers,lakes and fields.It will harm the crops ,kill a large number of fish.
33. We should plant more and more trees in order to live better and more healthy in the future.
