two-way ticket

• 往返票；来回票

two-way ticket的用法和样例：

例句

1. I want to change the date of my return ticket.
   我想把往返票的日期改一下。
2. Let me have a round-trip ticket to Detroit, please.
   请给我来一张到底特律的往返票。
3. I'll need an economy ticket with an open return.
   我要一张经济舱，回来时间不定的来回票。
4. I'd like to buy a roundtrip ticket to Honolulu.
   我想买一张到檀香山的来回票。