Pki
abbr. Public Key Infrastructure 公钥基础设施
🗣️ 情景例句
What's your major?
你主修什么专业？
You can't make omelets (or omeletts) without breaking eggs.
有失才有得。
I can't remember. Did I put them under the table?
我想不起来了。 放在桌子下面了吗？