Peter: What are you doing? 你在干什么？

Sally: I'm drawing with this new pen. 我在用新钢笔画画。

Peter: But there is no ink in it. 可是里面没有墨水。

Sally: So it's not a very nice pen. 所以这不是一支好笔。

Peter: What are you doing? 你在干什么？

Sally: I'm drawing with this new pen. 我在用新钢笔画画。

Peter: But there is no ink in it. 可是里面没有墨水。

Sally: So it's not a very nice pen. 所以这不是一支好笔。