Ost
abbr. 科学技术局（Office of Science and Technology）
🗣️ 情景例句
Let's make it 6:00 at your place, is that OK?
咱们六点在你们家见，好吗？
The locusts completely wiped out this year's crops.
蝗虫使今年的庄稼全毁了。
This is the best material we have to offer.
这是本公司所供应的最好的原料。