Discrete function
[计] 离散函数
🧩 词语组成解析
🗣️ 情景例句
He is quick-witted.
他反应灵敏。
Third, straightforwardness is important, too.
最后坦率也很重要。
He asked very politely, Excuse me, have you got any books about the moon and the stars?
“请问，你有关于月亮和星星的书吗？”