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
We hired a woman to watch Richard and then Susan,
我们雇用一名女士来照顾Richard ，后来又照顾Susan
If they say you are good,ask yourself if it be true.
若有人称赞，自问对不对。
A great many former pupils will be attending a farewell dinner in his honour next Thursday.
很多老同学都准备参加下星期四为他举行的告别宴会。