Fourier series
[计] 傅里叶级数
🧩 词语组成解析
n. 傅立叶（姓氏）；傅里叶（法国空想社会主义者, 社会改革家）
🗣️ 情景例句
I'll be back
我会回来
He hasn't answered my letter yet.
他还没有给我回信。
In the struggle, the strap broke and, with the bag in their possession, both men started running through the trees.
在争抢中，手提包的带断了，包落入这两个人手里，他们拔腿跑进了树林。