Oodbs
面向对象数据库系统
🗣️ 情景例句
And your friends are planning to go to Columbia?
而且你的朋友们也准备上Columbia大学 ，对吗？
Do you have any rooms?
你有房间吗？
Excuse me. Where's North Street Hospital, please?
请问，北街医院在哪儿？