Cofunction
n. 余函数
🗣️ 情景例句
Anytime.
随时找我。
I'm always punctual.
我总是很准时。
The tree was planted near the church fifty years ago, but it is only in recent years that it has gained an evil reputation.
该树是50年前栽在教堂附近的，但只是近几年才得到了一个坏名声。