Variable function
[计] 可变函数
🧩 词语组成解析
🗣️ 情景例句
Yes. I know I must seem silly.
是的，我知道我看来一定很可笑。
Oh, that's all right.
哦，没关系。
In this way, he has begun his own private 'telephone' service.
就这样，他开始自己的私人“电话”业务。