Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
In any case, you should prepare for the worst.
无论如何你要做好最坏的打算。
Shall I carry this for you?
要不要我帮您拿这件东西？
have been frightened out of their wits by giant fish bumping into them as they work.
他们曾在工作时被撞到他们身上的大鱼吓得惊惶失措。