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
The expressway can lead you everywhere around this region.
高速公路能把你带到这个地区的任何地方。
You cannot make a silk purse out of a sow's ear.
猪耳朵做不成丝钱包；巧妇难为无米之炊。
Then he sits and barks until someone lets him out.
这之后他就坐下汪汪叫起来，直到有人来把它放出去。