Bisdn
[计] 宽带综合业务数字网
🗣️ 情景例句
What for?
为什么？
There used to be a grocery store on the corner.
过去在角落上有一个杂货店。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时