Survival favours the fittest

• 适者生存

Survival favours the fittest的用法和样例：

例句

1. Life is a deadly struggle in which only the fittest survive.
   生活是适者生存的一场殊死搏斗。
2. It stops natural selection and genetic survival dead in its tracks.
   大意指将会停止自然选择适者生存。