Fluorophotometer
荧光光度计
🗣️ 情景例句
What are you talking about?
你在说什么呀？
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
All that is in my mind when I meet a young person.
每逢我遇到年轻人，脑子里就想到，