Petzval theory
[医] 珀兹伐氏学说(镜片像散现象)
🧩 词语组成解析
佩兹伐
🗣️ 情景例句
Nope. I am in perfect health.
没有。我身体好的很。
In the multitude of counsellors there is safety.
谋士多，保安全。
Look! It's inside another pot. What was that pot used for?
“瞧！还是大壶套小壶呢。有什么用途？”