Calcofluor
[美]卡尔科弗卢尔(荧光增白剂)
🗣️ 情景例句
He ofter overdrafts his account.
他的账户经常透支。
His presence in the room was not noticed.
没有人注意到他在房间里。
and still cannot fathom the exact outline of the vision before them.
站在镜前，不能辨认出自身的真面目。