A:What's wrong with you?怎么了?
B:I have had a low fever these days.这些日子我一直发低烧。
A:Don't worry. I'll write you a prescription for a new medicine that works wonders.别担心,我给你开种新药,对这种病疗效奇佳。
B:Thank you, doctor.谢谢了,医生。