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
Don't forget to use primer first when you paint the house.
刷房子之前别忘了刮底漆。
Can you do me a favour?
您能帮我个忙吗？
We're going to play football.
我们打算踢足球。