on a long journey or series of journeys, especially as part of one's job as a sales representative or a performer
在旅途中（尤指推销员在巡回兜售中; 表演者在巡回演出中）。
1.1
(of a person) without a permanent home and moving from place to place
（人）没有固定的家; 到处流浪。
2
(of a car) in use; able to be driven
（车辆）在行驶; 开得动。
2.1
（常作on-the-road）(of or with reference to the price of a motor vehicle) including the cost of licence plates, tax, etc., so the vehicle is fully ready for use on public roads
可上路的（指汽车价格已包括牌照费及税费等在内, 一旦购车款项付清, 车辆即可上路行驶）：
we found on-the-road prices from £5,780 to £6,151.