Fluoflavin
荧黄素
🗣️ 情景例句
We have closely connected with firms in USA.
我们同美国有良好的业务关系。
Who is this?I don't recognize your voice.
你是谁?我不认出你的声音。
After putting it on, Mrs.Richards went downstairs.
理查兹夫人穿上化装服后下了楼，