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
He said he'll call you.
他说了他要给你打电话。
The pressuer of work was too great for him.
工作压力使他承受不了。
I looked at my watch.It was true.
我看了一下我的手表，果真如此。