Pgns
abbr. Primary Guidance and Navigation System 初级制导与导航系统
🗣️ 情景例句
That took place right after the First World War, didn't it?
它就发生在第一次世界大战之后，是吗？
Yes, please.
是的，麻烦了。
Jim, who's that woman?
吉姆， 那个女的是谁？