Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
I have a complaint for you.
我有点不满意的事要跟你谈谈。
Fortune to one is mother, to another is stepmother.
命运对一种人如亲娘，对另一种人却是晚娘。
Do you direct comedies?
您导演喜剧吗？