In addition to their distinctive domed foreheads, they had wide palates and massive cheek teeth.

除了独特的圆顶前额外，他们还有宽阔的上颚和巨大的颊齿。

And we know this because, in most of the big bone-crushers, their cheek teeth show distinctive marks -- the same marks that modern hyenas get by gnawing on bones.

我们之所以知道这一点， 是因为在大多数大型碎骨机中，它们的颊齿上都有明显的痕迹——与现代鬣狗啃骨头时留下的痕迹相同。