Diacaustic
散焦面, 散焦曲线
🗣️ 情景例句
I really don't like eating chocolate first thing in the morning.
我真的不太喜欢在早上把巧克力当作早点来吃。
It is a small flock that has not a black sheep.
家家难免有败类。
We cannot change a law.
我们不能变更法律。