Autovariance function
[计] 自方差函数
🧩 词语组成解析
[计] 自方差
🗣️ 情景例句
Tell me about your book.
谈谈你的书吧。
The old man fumbled with the key in the dark.
老人在黑暗中摸索着寻找钥匙。
I'm sorry to hear that. I hope you're better now.
听说你病 了，我心里很不好受。我希望你现在好些了。