We should stop cutting down so many trees.
我们应该停止砍伐这么多的树。
Ms Guo: Look at this picture. What is it?
郭老师:看这幅图片。它是什么?
Kitty: It’s the Earth.
凯蒂:它是地球。
Ms Guo: The green and brown parts are forests and land. What are the blue parts?
郭老师:绿色和棕色的区域是森林和陆地。蓝色的区域是什么?
Joe: I think they’re oceans.
乔:我认为它们是海洋。
Ms Guo: Yes, they are. The Earth was very clean and beautiful in the past, but now some parts are dirty. Can we do anything to help the Earth?
郭老师:是的,它们是。在过去地球是非常干净和美丽的,但是现在一些区域是脏的。我们能做一些事来帮助地球吗?
Alice: Yes. We should stop throwing rubbish into rivers.
艾丽斯:是的。我们应该停止向河里扔垃圾。
Peter: We should stop cutting down so many trees.
彼得:我们应该停止砍伐这么多的树。
Kitty: We should stop using plastic bags.
凯蒂:我们应该停止使用塑料袋。