Osts
(ost 的复数) abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
I'd really like to pick up Grandpa at the railroad station.
我真想去火车站接爷爷。
She was fully equipped for the climbing.
她装备齐全，准备登山。
Yes?
什么事？