Unced
abbr. 联合国环境与发展会议（United Nations Conference on Environment and Development）
🗣️ 情景例句
Thanks. Excuse me.
谢谢。对不起，失陪了。
He puts me to shame.
他使我蒙羞。
That's an English car!
那才是一辆英国产的小汽车！