I think it's motion sickness. 我想我是晕车了。
You didn't eat anything on the train. 你在火车上没有吃任何东西吗？
I don't have an appetite. 我没有胃口。
Well, I'll go to the dining car and get some hot drinks for you.
额，我去餐车那里给你带一些热的食物。
Thank you. Could you please buy me some medicine for motion sickness.
谢谢你。你能帮我买一些晕车药吗？
Sure, you should have a rest now.
当然，你现在应该休息一下。
