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
Here's a real buy.
这个价格便宜。
Don't forget to phone to let us know you arrived safely.
不要忘记打电话，告诉我们你已经安全抵达。
'I'm trying to repair the bell,' answered Bill.
“我想把这口钟修好，”比尔回答说。