Diacaustic
散焦面, 散焦曲线
🗣️ 情景例句
because we have a little surprise for you today.
因为今天我们要给各位一项惊喜。
Cowards are cruel.
懦夫不仁。
But my sister bought this pair last month.
但是，我姐姐上个月买到了这样的一双。