Unfccc
abbr. 联合国气候变化框架公约（The United Nations Framework Convention on Climate Change）
🗣️ 情景例句
Interesting. What do you photograph?
很有意思。你拍些什么样的照片呢？
Do I need a reservation for the dining car?
我需要预订餐车吗？
Hi,Carl. Have you ordered yet?
嗨，卡尔，你点菜了吗？