Central moment
[计] 中心矩
🧩 词语组成解析
🗣️ 情景例句
Where'd you spend your vacation?
你在哪儿度的假？
Who lives by hope will die by hunger.
靠希望而生，必因饥饿而死。
If you make a mistake on the form, just cross it out.
如果填表出了错，划掉即可。