Diacaustic
散焦面, 散焦曲线
🗣️ 情景例句
What's the weather like in Japan this time of year?
现在日本的天气怎么样？
If we cannot get what we like, we have to like what we can get.
随遇而安。
Let me explain why I was late.
让我解释迟到的理由。