Knowing them may help when making the reservation in smaller stations (you could bring this page and use it for pointing), or when buying the tickets abroad.

了解这些代码有助于你在小站预定或在国外购票(你可以带着这张纸指给他们看)。

youdao

Knowing them may help when making the reservation in smaller stations (you could bring this page and use it for pointing), or when buying the tickets abroad.

了解这些代码有助于你在小站预定或在国外购票(你可以带着这张纸指给他们看)。

youdao