Complex variables
[电] 复变量
🧩 词语组成解析
n. 变量
🗣️ 情景例句
and lay them face down.
将牌盖住。
He who makes no mistakes, makes nothing.
不犯错误，成不了事。
I have always regarded the country as something you look at through a train window, or something you occasional visit during the weekend.
总认为乡村是透过火车车窗看到的那个样了，或偶尔周末去游玩一下景象。