Lagrange's identity
[计] 拉格朗日恒等式
🧩 词语组成解析
identity
[ai'dentiti]
n. 身份;[逻]同一性;个性;[数]恒等（式）;
🗣️ 情景例句
I'm supposed to be worried about my daughter,
我原该为我的女儿担心才是。
He tells me is a city boy, and this is his first time to live in a camp like this.
他说他是一个都市男孩，这是他第一次过这种野营生活。
I was almost there when a sarcastic voice below said,
当我几乎到了窗口，这时下面一个讽刺的声音说，