round-trip
adjective /ˌraʊnd ˈtrɪp/
/ˌraʊnd ˈtrɪp/
[only before noun] (North American English)- going to a place and back again; for or connected with such a journey
来回旅行；往返旅程 - a round-trip flight
往返航班 - a round-trip ticket/fare
往返票/票价
- a round-trip flight