Central difference notation
[计] 中心差分记法
🧩 词语组成解析
🗣️ 情景例句
What's new?
有什么新鲜事？
It is likely to rain.
天看来要下雨了。
He was known to us all as Dickie and his eccentricity had become legendary long before he died.
大家都管他叫迪基。早在他去世前很久，他的古怪行为就成了传奇故事了。