No, it isn't.It's a ruler.

不，不是，这是一把尺子。

My teacher's name is Miss Gao. At school I have a friend. His name is Li Lei.

我的老师是高小姐，我在学校里有一个朋友。他叫李磊。

I don't know.

我不知道。

The one in the red coat.

穿红色上衣的那个。

Let me see. Oh dear! Yes, it is broken.

让我看看，天哪！是坏了。

What are you doing?

你在干什么？