The social brain hypothesis suggests that our intelligence evolved to manage our complex social lives.
社会大脑假说认为，我们的智力进化是为了管理复杂的社会生活。
Collaboration between industries and communities is key to preserving our forests.
你不能害怕那些想要伤害你的人，因为如果你畏惧生活，你就永远不会真正地活过。