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
is going to win this seat on the board.
稳登联合校董会董事的宝座了。
What is the total circulation of this newspaper.
这家报纸总发行量多少？
I'm afraid I'm still not very good at it, though.
不过，恐怕我的汉语还是不够好。