Inverse factorial series
[计] 反阶乘积级数
🧩 词语组成解析
inverse
['in'və:s]
adj. 相反的;逆向的;倒转的;
n. 相反;倒转;相反的事物;
vt. 使倒转;使颠倒;
factorial
['fæktɔ:riəl]
adj. 因子的，阶乘的;
n. 阶乘积，阶乘;
🗣️ 情景例句
Don't worry, be happy.
别担心，开心点。
Is it illegal to tap a telephone for the purpose of secretly recording a conversation?
为了秘密地录下谈话，在电话内装置窃听器是违法的行为吗？
Sometimes, my grandma decides to buy one big birthday present for both of us.
有时，奶奶决定给我俩就买一件大生日礼物。