Smith: How do you see the difference between a flight attendant and a trainman?
史密斯：你怎么看空乘和火车乘务员的区别？
Li Tian: A flight attendant is under a more complicated and difficult environment.
李甜：空乘面临更加复杂和危险的环境。
Smith: That's right.
史密斯：是的。
Li Tian: Flight attendants have to be healthy before they take care of passengers.
李甜：空乘在照顾乘客之前，必须保证自己是健康的。
Smith: Are you in good health?
史密斯：你身体健康吗？
Li Tian: Yes. I can run five kilometers every day.
李甜：是的，我每天能跑五公里。