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
No one knows for certain what happened, but it's a fair bet that it was not an accident.
没有人知道究竟发生了什么，但几乎可以肯定这并非意外。
Did everyone you invited show up?
你邀请的人都来了吗？
Recently, one of Jeremy's closest friends asked him to make a speech at a wedding reception.
最近，杰里米的一个最亲密的朋友请他在一个婚礼上祝词。