Xanthyrone
丙烯基吡喃酮
🗣️ 情景例句
Does that make any sence?
这样清楚了吗？
You really did it this time!
这下你可糟了！
And if, with the decay of vitality, weariness increases,
再者，随着精力的衰退，老年人的疲惫感会增长，