Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
why don't you introduce everybody to Susan?
何不将她们每一位介绍给 Susan？
Continual failure drove him to suicide.
不断的失败逼得他自杀。
As Fred was going in the same direction, he walked along with the tourist.
因为游客与弗雷德走的是同一个方向，他便与游客一道同行。