Nace
abbr. 美国腐蚀工程师协会（National Association of Corrosion Engineer）；国家电子顾问委员会（National Advisory Committee on Electronics）
🗣️ 情景例句
I'm afraid it just isn't good enough.
恐怕这不够好。
There are spots in (or on) the sum.
人孰无过。
Are you kidding?
你在开玩笑吧！