Consumer surplus
[经] 消费者盈余
🧩 词语组成解析
🗣️ 情景例句
Yes, we did.
确实如此。
I'd appreciate it if you'd wait until be end for questions.
如果你等我做完再询问我会感激你的。
Duck your head as you go through the door there.
经过那儿的门时，请将头放低。