I'd like to change my accommodations from Tourist Class to First Class. What's the difference in fare?

我想把我的订位从旅游舱变更到头等舱，费用差额是多少？

youdao

I'd like to book a first-class sleeper in the name of Mr. P. Black, a return ticket.

我想订一张一等卧铺往返票，名字是p•布莱克先生。

youdao

I'd like to book a first-class sleeper in the name of Mr. P. Black, a return ticket.

我想订一张一等卧铺往返票，名字是p•布莱克先生。

youdao