Fluorescamine
荧光胺
🗣️ 情景例句
I've got extra time on my hands.
我有过多空闲时间。
Every horse thinks his sack heaviest.
每疋马认为自己驮的袋子重。
Excuse me. May I have a piece of paper, please?
请问，我可以要一张纸吗？