初级美语口语第 115 课：I Want to Be a Doctor 我想当医生

Mother:What do you want to be when you grow up? 你长大以后想要当什么?

Child:I want to be a doctor. 我想当医生.

Mother:Why? 为什么?

Child:I want to help sick people. 我想要帮助生病的人.