Factorial sign
[计] 阶乘号
🧩 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
Hi.
你好！
He that dallies with enemy gives him leave to kill him.
把敌人看儿戏，无异于准许敌人杀害自己。
Then we had to walk across some very wet ground.
然后，我们还得走过一些潮湿的地面。