Definition
Referring to the total distance or time involved in traveling to a place and returning from it.
往返
The daily commute to the office and back is 20 kilometers.
每天往返辦公室的路程是20公里。
We plan to cycle there and back to the lake, which should take about three hours in total.
我們計劃騎自行車往返湖邊，總共應該需要大約三個小時。
The total cost of the trip there and back was five hundred dollars.
往返旅行的總費用是五百美元。