Sers
表面增强拉曼谱仪
🗣️ 情景例句
In two hours and fifteen minutes
再过两小时十五分钟
The best mirror is an old friend.
老朋友是最好的镜子。
A piece of cheese.A loaf of bread.A bar of soap.
一块乳酪、一块面包、一块肥皂、