Fluorexone
荧光素配位剂(由不纯品calcein制得的纯品)
🗣️ 情景例句
The company is Craft and Craft,
这家公司叫Craft and Craft，
A squirrel cracks the nuts.
松鼠在啃坚果.
For the first time in his life, he became the proud owner of a bed which had springs and a mattress.
他平生第一次自豪地拥有了一张既有弹簧又带床垫的床。