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
If you roughhouse with a cat, you're going to get scratched.
如果你喜欢和猫嬉戏，可能会被爪子抓伤。
He always forgets to wash behind his ears.
他总是忘记洗耳朵后面。
I'm looking for a pair of black shoes.
我在找双黑色的鞋。