Osts
(ost 的复数) abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
Did you remember your other appointment for today?
还记得今天的另一个约会吗？
Where do I pick up the ticket?
我什么地方拿机票？
Good, I'll invite you out when you're here.
好极了，等你来的时候，请再接受我的招待。