我们希望讨论脱氧核糖核酸盐的结构。这种结构具有相当生物学意义的新特征。

文本是从无数文化中心引用的语录组成的组织。

Happiness is not the absence of suffering, but the ability to overcome it.

It will take about a thousand million million million million years for the Earth to run into the sun, so there’s no immediate cause for worry!