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
instead of you coming here.
而不是你到这儿来。
I hope you can tell me.
我希望你能告诉我。
I had just lost $50 and I felt very upset.
我刚刚丢了50英镑，感到非常烦恼。