Arithmetic function
[计] 算术函数
🧩 词语组成解析
🗣️ 情景例句
You'll need to hurry up, or you'll miss the train.
你得快点，否则赶不上火车。
How long will you be away?
你将离开多久？
Yet all these things, different as they seem, have one thing in common.
然而所有这些东西，看上去虽不同，但却有一个共同点。