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Bobby and Sam are doing a project.
波比和萨姆在进行一个项目。
The Earth is our home.
地球是我们的家园。
We should protect it.
我们应该保护它。
All students should know this.
所有的同学都应该知道这点。
Let's make a poster and tell them about it.
让我们来制作一张海报并告诉大家这点吧。
OK.
好的。
I can help you.
我可以帮你。
Sam starts drawing.
萨姆开始画画。
Let me draw the Earth first.
我们先画一个地球。
It's green, blue and brown.
它是绿色的，蓝色的和褐色的。
There are trees and flowers on it.
上面有树有花。
That looks nice!
看起来真棒！
Then, Bobby and Billy draw.
然后，波比和比利画画。
Let me draw some bananas on the trees.
我们在树上画一些香蕉皮。
Let me draw a rubbish bin.
让我来画一个垃圾箱。
You shouldn't litter, Bobby.
波比，你不应该乱扔垃圾。
The poster is ready.
海报做好了。
They put it at the school gate.
他们把它放在学校门口。
What a nice poster!
多好的海报啊！
We should protect the Earth and keep it clean.
我们应该保护地球并让它保持洁净。
