Statistical operator
[化] 统计算符; 统计矩阵
🧩 词语组成解析
🗣️ 情景例句
Mom, got it.
妈妈， 找到了。
'Tis the early bird that catches the worm.
早起的鸟先得虫；捷足先登。
Yes, they're free. But there's usually a long line.
是的，免费。但常常要排长队。