There's a park over there. Let's walk in the park for a while.
那边有个公园。我们去散散步吧!
You have to study English, don't you?
你必须学英语,不是吗?
OK. We can get some more tomorrow. We should finish the floor now. Can you take the other end of this piece of wood? Now you have to pull it to make the surface smooth like that.