Calcofluor
[美]卡尔科弗卢尔(荧光增白剂)
🗣️ 情景例句
Leave well enough alone.
得过且过，见好就收。
It must be rather difficult for us to push any sales if we buy it at this price.
如果我们按这个价格购买，将很能难推销。
but other farms are less favorably sited, and flooding can sometimes spell disaster for their owners.
其他农场地势欠佳，洪水有时会给农场主带来灾难。