Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
You've got the wedding-day jitters!
已经得了婚礼紧张症了！
One may sooner fall than rise.
跌倒容易爬起难。
Buried somewhere in deep grass there is a rusting lawn mower which I have promised to repair one day.
深草丛中的某个地方有一台正在生锈的割草机，那就是我曾答应某日要修理的割草机。