DNA的双螺旋结构不仅美丽,而且优雅简单。
The double helix structure of DNA is not only beautiful but also elegantly simple.
The line between madness and genius is drawn by those who fear both.
一本好书是一个永远不会让你失望的朋友。
The pharmaceutical industry must balance profit with purpose—our mission is to heal, not just to sell.