gruff       
adjective uk/ɡrʌf/ us/ɡrʌf/
 (声音)低沉而生硬的,粗声粗气的;(行为)不友好的,不耐烦的,粗暴的
(of a person's voice) low and unfriendly, or (of a person's behaviour) unfriendly or showing no patience
  "Yeah, so what?" came the gruff reply. “是的,那又怎样?”对方生硬地回答道。 
 He's quite a sweet man beneath the gruff exterior. 他外表冷漠内心善良。 
 Compare: hoarse