随时随地订机票、无陪购票、添加儿童婴儿

Round-trip ticket, how long can the two tickets be separated?

Can I get a refund if I don't like the destination that comes out of the blind box ticket purchase?

Is it necessary to arrive at the airport two hours in advance when online check-in and seat selection are so convenient?

The WiFi priority service on the plane, can I buy it to share with my friends?