Cryptosystem
[计] 密码系统, 密码体制
🗣️ 情景例句
He's a pretty good bloke and he seems very friendly.
他是一个很不错的家伙，看起来也很友善。
It's unlikely he's here.
看样子他不象在这儿。
Some of the apples are hard to reach.
有些苹果很难够得着。