一、环境与节俭 1.保护环境是我们的责任。It's our duty to protect our environment. 2.爱护我们的环境是非常重要的。It is very important to take care of our environment 3.我们不应该把垃圾倒在地上。We should not throw litter onto the ground. 4.我们不应该在公共场所吐痰。We should not spit in a public place. 5.我们应该种植更多的花和树。We should plant more flowers and trees. 6.我们必须捡起一些垃圾，扔进垃圾箱We must pick up some rubbish and throw it into a dustbin. 7.如果每个人都对保护环境作出贡献，世界将变得更加美丽。If everyone makes contribution to protecting the environment, the world will become much more beautiful. 8.我们必须种树的原因是它们能供应我们新鲜的空气。The reason why we have to grow trees is that they can provide us with fresh aira 9.我们应该不遗余力地美化我们的环境。We should spare no effort to beautify our environment。 10.越来越多的人意识到保护环境是非常重要的。More and more people realized that protecting environment is very important.