Orsi
abbr. Operations Research Society of India 印度运筹学学会
🗣️ 情景例句
Do you remember, Michelle?
你还记得吗， Michelle？
It's a classic!
真是经典！
A short while ago, my sister helped me to carry one of my old bookcases up the stairs.
几分钟前，我妹妹帮我把一个旧书橱抬上了楼。