Osi
[计] 开放式系统互连, 开放式系统互连协议组, 开放式系统互连参考模型
🗣️ 情景例句
I certainly am. May I help you?
我是，我能帮您什么忙吗？
Welcome to our factory.
欢迎到我们工厂来。
Don't say that before you look at the picture. Turn it on.
未看图像之前先别这样说。打开。