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
You'd better be careful.
你要小心一点。
I've been watching TV all night.
我看了一整晚的电视。
I'd say about half of the shipment is unusable.
我看大概有一半的货不能用了。