结交朋友应该找超过自己的人,和自己差不多或不如自己的人不如不交。
The beauty of the genetic code lies in its universality; it is shared by all known forms of life.
We must mine coal responsibly today so that our children inherit both energy security and a healthy environment.
爱就是爱,不是爱就不是爱。浅薄的爱根本不算爱。