往返機票的英文可以用round trip air ticket 或者 return ticket。
一、短語
往返機票的訂單 Reservation on return ticket
雙往返機票 back-to-back
備好往返機票 Air tickets
二、例句
1、往返機票是多少錢？
How much is the return ticket?
2、屆時，費米專案的科學家們就不只是開香檳慶祝了；他們完全可以開始預訂到斯德哥爾摩的往返機票。
At that time, Fermi scientists may do more than just uncork the champagne; they can startreserving themselves a round-trip ticket to Stockholm.
3、攜帶公司證明檔案的乘客可以換取折扣或者免費（雖然很罕見）的往返機票。
Passengers carry documents on behalf of a company in return for a discounted, or free (thoughrarely), round trip.
往返機票的英文可以用round trip air ticket 或者 return ticket。
一、短語
往返機票的訂單 Reservation on return ticket
雙往返機票 back-to-back
備好往返機票 Air tickets
二、例句
1、往返機票是多少錢？
How much is the return ticket?
2、屆時，費米專案的科學家們就不只是開香檳慶祝了；他們完全可以開始預訂到斯德哥爾摩的往返機票。
At that time, Fermi scientists may do more than just uncork the champagne; they can startreserving themselves a round-trip ticket to Stockholm.
3、攜帶公司證明檔案的乘客可以換取折扣或者免費（雖然很罕見）的往返機票。
Passengers carry documents on behalf of a company in return for a discounted, or free (thoughrarely), round trip.