Unced
abbr. 联合国环境与发展会议（United Nations Conference on Environment and Development）
🗣️ 情景例句
But it's not going to be easy.
不过这事可不容易。
To a boiling pot flies come not.
苍蝇不叮沸水壶。
The Australian seasons are the opposite.
澳大利亚的季节正好相反。