They take their driverless car to an appointment and set the empty vehicle to circle the building to avoid paying for parking.

他们把无人驾驶汽车带到约会的地点之后，就让空车绕着大楼行驶，以此避免付停车费。

The app enables an en route pickup, which means more streamlined traffic, and less time spent with an empty vehicle.

该应用程序支持途中取件， 这意味着交通更加顺畅，空车时间更少。