A:What do you want to be in the future?
B:I want to be a doctor.
A:Why do you want to be a doctor?
B:Because I want to save people's lives.
Now, what do you want to be when you graduate from college?

A:I want to be an English teacher. This way,I can teach many children to speak and write English.

A:你未来想当什么?
B:我想当医生。
A:你为什么会想当医生?
B:因为我想要拯救人们的生命。

那么，你大学毕业后想做什么呢?
A:我想当英语老师。这样一来，

我就能教很多小朋友英语口语和写作。
(红色部分不被强调)