Fluorescer
荧光剂; 荧光增白剂
🗣️ 情景例句
I will have a cheeseburger, medium rare,
我要一份起士汉堡，五分熟，
When did you come to see me?
你什么时候来见我？
How many different models of this do you offer?
这个你们有多少种不同的型式。