Discrete variable
[计] 离散变量
🧩 词语组成解析
🗣️ 情景例句
She takes her exams next week, so she's burning the midnight oil.
她下周要考试，所以在开夜车。
One's mantle falls on somebody.
春风化雨。
Are these bags heavy? No, they're light.
不，是轻的。