hellhound

1. Discrimination is a hellhound that gnaws at Negroes in every waking moment of their lives.
   种族歧视是在黑人生命中每个清醒的时刻都在撕咬他们的地狱之犬。
2. A hellhound never any more than gnaw at Negroes, 1 Waking moment of every life is waiting for your help, Obama!
   地狱之犬不可能再狂吠黑种人，唤醒每条生命才是你真正的责任，奥巴马！

noun

1. (Greek mythology) the three-headed dog guarding the entrance to Hades

   Synonym:    Cerberus

2. a very evil man