Someone could give a talk and say, look at us, we've got these really sharp teeth and muscles and a brain that's really good at throwing weapons, and if you look at lots of societies around the world, you'll see very high rates of violence.
有人会发表一个演讲并说， 看看我们，我们已经有了很尖的牙齿 很好的肌肉和大脑 很擅长于抛掷武器， 如果你看看世界各地的社会群体 你会发现暴力时常发生。