Calcofluor
[美]卡尔科弗卢尔(荧光增白剂)
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
You'll be there in plenty of time.
你可以很方便地到达那里。
I would make a very poor show of disputing the ownership of a cave with a bear,
要我和一只熊去争洞穴，我会出洋相的；