Fluorodensitometry
荧光密度分析法
🗣️ 情景例句
Well, then why are you so sad?
那你为什么如此难过？
Thank you for inviting me to speak at the dinner.
谢谢你邀请我共进晚餐。
The woman was a visitor. She did not live in London. She lived in the country.
这老太太是位游客，不住在伦敦。