Fluorexone
荧光素配位剂(由不纯品calcein制得的纯品)
🗣️ 情景例句
let you and I talk about it.
我们就来讨论一下。
This window is just as big as that one.
这扇窗户刚好和那扇一样大。
How should I tell him the bad news?
我该如何告诉他这个坏消息？