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
Well, what do you think?
嗯，你觉得怎样？
Do you offer FOB or CIF?
你们报船上交货价还是到岸价？
If you are citing a train, it is always better to be comfortably early than even a fraction of a minted too late.
如果赶火车，早到总比晚到好，哪怕早到一会儿也好。