我把PSV带在包里，随时随地都能玩游戏。

I carry my ___PSV in my bag to play games anytime.

这辆公共汽车是一辆注册的PSV，可以合法载客。

This bus is a registered ___PSV and can legally carry passengers.

这个系统的PSV需要定期检查以确保安全运行。

The ___PSV in this system needs regular inspection to ensure safe operation.