Iid
独立同分布[的]
🗣️ 情景例句
Why is that?
为什么？
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
Well, yes, I could do that. But I don't want to do anything alone.
哦，好，这事我能办。但我又不想一个人做事情。