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
Hi. What can I do for you?
嗨 。我能帮你吗？
A man of words and not of deeds is like a garden full of weeds.
讲而不做，犹如花园里长满了荒草。
Hold on please. I'm sorry.
请别挂断。很抱歉。