Bista
abbr. Bureau of International Scientific and Technological Affairs (U. S. Department of State) 国际科技事务局（美国国务院）
🗣️ 情景例句
How about you, Richard?
你呢， Richard？
I pity the victims.
我觉得受害者很可怜。
We have this problem every year.
我们每年都碰到这类问题。末了，