Neumann problem
[计] 诺伊曼问题, 第二类边值问题
🧩 词语组成解析
[计] 诺伊曼
🗣️ 情景例句
It doesn't mean you have to be a doctor.
这并不意味着你一定要当医生。
Kill the goose that lays the golden eggs.
杀鸡取金蛋；只图眼前需要，断绝将来财源。
I don't have any small notes on me.
我身边没有小钞票。