translation.en: And if the very few that survive pass onto their offspring whatever it was that helped them survive, then those offspring must be better adapted to the circumstances in which all this happened than their parents were.
translation.zh: 如果少数能活下来，遗传给子孙 有助于它们存活的任何条件 那么这些子孙一定能比祖先 更好的适应 周围环境