Ramanscattering
喇曼散射
🗣️ 情景例句
Is it too early to call Mr. Carlson?
现在打电话给Carlson先生会不会太早了？
Excuse me for a moment, please.
对不起失陪一下。
We appreciate your fast service.
麻烦你会尽力处理，谢谢。