Emissions trading
排污权交易
🧩 词语组成解析
n. 排放物( emission的复数形式 ); 散发物（尤指气体）
[经] 交易
🗣️ 情景例句
Just a moment, I'll ask him.
稍等，我问一下他。
He is hard to please.
他是难以取悦的。
I didn't know he was the richest person in the world.
我不知道他是世界上最有钱的人。