Nanotyrannus did not have the jaw muscles or tooth design for penetrating bone.

矮暴龙的颚肌和牙齿设计不能咬穿骨头。

Those spikes could penetrate bone, they could penetrate flesh and they could cause an injury that would end the attacker's life.

这些刺能击穿骨头能刺透血肉，它们能造成严重损伤终结攻击者的生命。