Flavin
n. 黄素\\n[化] 黄素类; 异咯嗪; 五羟黄酮; 栎精
🗣️ 情景例句
I love her very much. She's been a joy.
我很爱她。她是个讨人喜欢的孩子。
If you want a thing (well) done, do it yourself.
要想做好事情，就要自己动手。
We would be glad to start business with you.
我们很高兴能与贵公司建立贸易往来。