Factorial series
[计] 阶乘级数
🧩 词语组成解析
factorial
['fæktɔ:riəl]
adj. 因子的，阶乘的;
n. 阶乘积，阶乘;
🗣️ 情景例句
Oh, it's a sweet-sounding name for a sweet little boy.
噢， 好一个甜美悦耳的名字 ，配个甜美的小孩。
Jack will feel sorry when she leaves.
她一走，杰克会觉得悲伤的。
but when she got out at her own floor, both were forgotten in her sudden discovery that her front door was open.
但她到自己的楼层走出电梯后，就把这两件事忘了个干净，因为她突然发现她家的大门开着。