Xanthone
n. [化]一种化学原料(为杀虫剂及合成染料)
🔁 扩展释义
【化】 ┷吨酮【医】 ┱吨酮, 氧杂蒽酮
🗣️ 情景例句
Find a productive hobby, and see if you can learn something.
找一个具有意义的爱好，看你能否从中学到什么。
Which one is yours?
哪一个是你的？
As a reasonable guess, they might, on an average, be 100 light years away.
据合理推算，外星人离我们平均距离也有100光年之远