6)War is an animal's nature.

　　战争是动物的天性。

　　7)I'm so proud of you guys.

　　你们能来，我真为你们自豪。

　　对一只金丝雀来说，猫就是怪物。我们不过是习惯当猫罢了。

　　9)The knowledge we have gained over the past ten years from genetic research is more than a century ago.

　　我们过去十年从基因研究所得到的知识 远远超过近百年对化石的研究。

　　10)You want to live together, the best.

　　想要活命，最好在一起。

　　11) The key to a happy life is to accept you are never actually in control.

　　To live a happy life, you have to admit that you can never be the master of your life.

　　幸福生活的关键在于接受你从未真正掌控的生活。

　　要活得开心，你首先得承认其实你永远都无法做生活的主人。

　　12)Monster, monster is just a relative noun. For the canary, the cat is a monster, we humans are just used to think of themselves as cats.

　　怪物，怪物只是一个相关名词。对于金丝雀来说，猫就是怪物，我们人类只不过是习惯把自己当成猫罢了。