Falling factorial
[计] 递降阶乘
🧩 词语组成解析
a. 落下的, 坠落的, 下降的\\n[化] 消胀
factorial
['fæktɔ:riəl]
adj. 因子的，阶乘的;
n. 阶乘积，阶乘;
🗣️ 情景例句
Well, that's life, isn't it?
这就是生活，不是吗？
In college I majored in history, What was you major?
大学时我主修历史，你主修什么呢？
Fish love swimming round the rocks and through holes in them.
鱼喜欢绕着岩石和穿石洞游水。