公共汽车一种载客的长型机动车辆，通常沿指定路线行驶 A long motor vehicle for carrying passengers, usually along a fixed route.
卡车各种用于运载或搬运货物的重型机动车辆 Any of various heavy motor vehicles designed for carrying or pulling loads.
（汽车的）超速档机动车辆的一种齿轮装置，通过降低齿轮比率来减少为将车速保持在一定范围内而需要的输出力 A gearing mechanism of a motor vehicle engine that reduces the power output required to maintain driving speed in a specific range by lowering the gear ratio.
保险杆是机动车辆的一部分。 A bumper is a part of a motor vehicle.
