Fluorexone
荧光素配位剂(由不纯品calcein制得的纯品)
🗣️ 情景例句
to hear about your wife having passed away.
听到你太太去世的消息。
I am cought between the devil and the deep blue sea.
进退维谷。
A drink? We've only just started! There are twenty more trees to be planted!
喝水？我们才刚刚开始！还有20多株树要种呢！