Osirm
开放式系统互连模式
🗣️ 情景例句
We usually accept payment by irrevocable L C payable against shiping documents.
我们一般用不可撤销信用证，凭装运单据结汇付款方式。
Do not hallo till you are out of the wood.
未出险境，先莫高兴。
She explained that Rastus was very dear to her.
拉姆齐太太解释说她心疼她的猫拉斯特斯。