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
Good-bye.
再见。
My schedule is very flexible, and I am given a lot of freedom.
我的工作表很有变通性，使我十分自由。
They had large rooms with beautifully decorated walls.
里面房间很大，墙壁装饰华丽。