Orsi
abbr. Operations Research Society of India 印度运筹学学会
🗣️ 情景例句
How long?
多久？
There's something wrong with the phone.
电话出了点儿毛病。
Yes, speaking. Just a moment. Let me turn the music down. There, that's better.
是的，我就是。请稍等。让我把音量关小一点。你瞧，好多啦。