Fluorexone
荧光素配位剂(由不纯品calcein制得的纯品)
🗣️ 情景例句
What number are you trying to dial?
你要的电话是什么号码？
There were 15 votes in favor of my suggestion, and 23 against.
一共有十五票赞成，二十三票反对。
Is this your bike?
这是你的自行车吗？