Psv
abbr. （英）公共汽车（public service vehicle）
🗣️ 情景例句
and Mrs. Montefiore has reserved the honeymoon suite for us. Montefiore
太太为我们保留了蜜月套房。
It's quite probable.
完全有可能。
These were the so-called mainframe machines.
它们被称为主机。