Euxanthone
[化] 优┷吨酮; 1,7-二羟(基)-9-氧杂蒽酮(请比较flavone黄酮)
🗣️ 情景例句
Thank you so much,
非常感谢你 。
Do not give a dog bread every time he wags his tail.
不要有求必应。
Mrs.Ramsay got very worried.
拉姆齐太太急坏了，