Diacaustic
散焦面, 散焦曲线
🗣️ 情景例句
I have never confirmed that the Roswell base exists, but I can't deny it either.
我从没有说过拉兹威基地存在，但我也不会否认。
In secondary school, children get more advanced knowledge.
在中学，孩子们得到更高深的知识。
Well, it's certainly not for me!
噢，当然不会给我的！