因为同一座次的旅客同时登记，他们不会被迫穿过别的旅客交换座位。

Because passengers in the same seat types board together, they do not have to step over each other to swap seats.

youdao

因为同一座次的旅客同时登记，他们不会被迫穿过别的旅客交换座位。

Because passengers in the same seat types board together, they do not have to step over each other to swap seats.

youdao