Sdsu
abbr. San Diego State University 圣地亞哥州立大學; switched data service unit 交換式數據業務單元
??? 情景例句
Why don't we take a walk down to the river?
我們何不一路散步到河邊去呢？
Why didn't you come?
為什么你不來？
That's it. Thank you for your help. Goodby.
對的。謝謝你的幫忙，再見。