Calcofluor
[美]卡尔科弗卢尔(荧光增白剂)
🗣️ 情景例句
The internet brings people closer from around the world.
因特网把世界上人们的距离拉近了。
I believe the first test of truly great man is his humility.
一个真正伟大的人，对他的第一个考验就是看他是否谦逊。
Today is Thursday, September 10th, Teachers' Day.
今天是9月10日，星期四，教师节。