介导疼痛的分子非常古老，揭示了这种感觉在进化中的深远根源。
The molecules that mediate pain are ancient, revealing how deeply rooted this sensation is in evolution.
我们都在阴沟里，但仍有人仰望星空。
International cooperation should be based on mutual benefit and win-win results.
Old minds are like old horses; you must exercise them if you wish to keep them in working order.
志村簇的研究证明了几何和数论的相互关联性。