Cryptosystem
[计] 密码系统, 密码体制
🗣️ 情景例句
Susan's teddy bear.
Susan送的泰迪熊
If you hadn't slipped and fallen,you wouldn't have broken your leg.
如果你没滑倒,你就不会断腿了。
Do you see that notice? It says No Camping -- in case you can't read!'
你们看到那个布告牌了吗？上面写着‘禁止野营’－－除非你们不识字！”