Diacaustic
散焦面, 散焦曲线
🗣️ 情景例句
I was teaching music,
我当时教音乐，
My grandfather got married in 1921.
我的祖父在1921年结婚。
After all, all living creatures live by feeding on something else, whether it be plant or animal, dead or alive, and it is only by chance that such a fate is avoided.
因为一切生物都是靠吃别的东西来活命的，不管这种东西是植物还是动物，死的还是活的，因此，生物偶尔才能避免被吃掉的命运。