Chalcone
[化]查耳酮(芳基烯丙酰芳烃, 苯丙烯酰苯)
🗣️ 情景例句
have become good friends, haven't you?
成了好朋友，不是吗？
Art is long, but life is short.
人生有限，学问无涯。
The sun comes up in the east.
太阳从东方升起。