Derating
[电] 减额法
🗣️ 情景例句
I'm sorry, I really don't know.
对不起，我真的不知道。
I'm very much obliged to you.
非常感谢您。
Thank you, madam. Now, may I see yours, sir?
谢谢，夫人。现在，可以看看你的车票吗，先生？