Flavin
n. 黄素\\n[化] 黄素类; 异咯嗪; 五羟黄酮; 栎精
🗣️ 情景例句
where would you choose to spend our anniversary?
会选哪里去度我们的结婚周年纪念日
Do you have a coin for the phone?
你有打电话的硬币吗？
He looks ill.
他看上去是病了。