Ramanscattering
喇曼散射
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
Give me the rocket and boat, and I'll give you a sucker.
把那火箭和快艇给我，我就给你棒棒糖。
How do they come packaged?
货是怎样装的呢？