Have you passed a test for this class of vehicle?

【class】你通过这种车辆的驾照考试了吗？

She told the Reuters news agency the project is part of USPS efforts to operate a future class of vehicles using the latest technologies.

她告诉路透社，该项目是美国邮政局采用最新技术" 运营未来一类车辆" 的一部分。