A: Since you're going to pick up Nancy from the fitness class, why don't you kill two birds with one stone and pick up Jane after her ballet class?
A: Since you're going to pick up Nancy from the fitness class, why don't you kill two birds with one stone and pick up Jane after her ballet class?
（你既然去健身班接南茜，那你顺便把上完芭蕾舞课的珍尼接回来好吗？）