Fluorexone
荧光素配位剂(由不纯品calcein制得的纯品)
🗣️ 情景例句
I can play.
我也能玩。
What will you have for breakfast tomorrow morning?
你明天早上早餐将有什么？
One day, the man downstairs went to talk to the man. He went upstairs and knocked the door.
一天，楼下人去找楼上人谈谈。 他上楼敲门。