Flavin
n. 黄素\\n[化] 黄素类; 异咯嗪; 五羟黄酮; 栎精
🗣️ 情景例句
Haven't I seen you before?
我以前没见过你吗？
We had a good time.
我们过得很愉快。
There was no excuse we have new brooms.
你们没有任何借口我们有新扫把。