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.
When the gunpowder ignites, time stops.#当火药点燃的瞬间，时间就停止了。
I have never been able to write a happy play. I can't. I can write a funny play, but not a happy play.
Then by your side,no bed-room me deny.
理论地理学是科学的女王，因为它独力处理事物在空间中的排列。
The best investment you can make is in your own abilities.