My sister is a nurse, not a doctor.

我姐姐是护士，不是医生。

同一单元的其他句子

• What does she do?她是做什么的？
• She is a doctor.她是一名医生。
• He works in a hospital.他在医院工作。
• My mother is a teacher.我妈妈是一名老师。
• Does she like her job?她喜欢她的工作吗？