Fluorescer
荧光剂; 荧光增白剂
🗣️ 情景例句
My name is Wang Feng and I'm calling to cancel plane ticket.
我叫王峰，我想取消我预定的飞机票。
By accident Marion overheard some nasty gossip.
马里恩偶然听到了一些令人不愉快的谣言。
Yes?
是吗？