Flavin
n. 黄素\\n[化] 黄素类; 异咯嗪; 五羟黄酮; 栎精
🗣️ 情景例句
Americans consider it extremely bad manners to be late.
美国人认为迟到是一种极不礼貌的做法。
I hope you bring his records with him.
我希望你带他的唱片一起来。
What's that?
那是什么日子？