Calcofluor
[美]卡尔科弗卢尔(荧光增白剂)
🗣️ 情景例句
and I've been trying to find just the right thing for her.
而我一直在为她找件合适的东西。
Does the back door have a lock on it?
后门上有锁吗？
You've got a point there.
你说的有道理。