Orsi
abbr. Operations Research Society of India 印度运筹学学会
🗣️ 情景例句
before Michelle and her friends arrived.
在Michelle和她的朋友们来之前。
I did lesson yesterday.
我昨天做功课。
When I was young, I'd listen to the radio, waiting for my favorite songs.
当我还是个小女孩的时候，我常听着收音机，等待我最喜欢的歌。