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
having to take care of the baby all weekend.
整个周末照顾孩子。
Our packing charge includes $1 for the drum, which sum will be credited on return.
包装费中有1美元是包装桶的费用，此费用在桶还给我们时可退回。
Why didn't you tell her to use her own?
你为什么不叫她用自己的？