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
No, no. But I do have very close friends in New York City.
没有。我在纽约有很要好的朋友。
Time will tell.
时间会证明的。
We were, however, worried about our nearest neighbors, whose farm was low lying and who were newcomers to the district.
不过，我们很为我们的近邻担心。他们的农场地势低洼，而且他们又新来乍到。