Poisson equation
[计] 泊松方程
🧩 词语组成解析
[计] 泊松
🗣️ 情景例句
What's this?
这是什么？
If you want knowledge, you must toil for it.
若要求知，必须刻苦。
Sometimes a tame elephant is tethered nearby to give the wild one confidence,
有时，把一头已驯服的象拴在旁边能给野象以信心。