详细解释:a. 来回的, 折回的, 反向的, 往返的
词型变化:
异体字:round-trip详细解释:
roundtrip 或 round-trip 也作 round trip
n.(名词)A trip from one place to another and back, usually over the same route.通常沿相同路线的来回旅行,双程旅行n.attributive.(定语名词)Often used to modify another noun:常用作修饰另一名词:例句:roundtrip flights; round-trip tickets; round trip passengers.往返飞行;往返票;双程旅行的乘客