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
I should have asked you first.
我应该先征得你的同意。
She has always a gracious smile.
她脸上总是带着和蔼可亲的微笑。
I'm sorry to have bothered you.
对不起，打扰你了。