The hole looked like the separator's mouth, and it had long, iron teeth.

这个洞看起来像分离器的嘴，上面长着长长的铁齿。

In such a case you'd feel the iron teeth torture your flesh, filling your soul with images odious and precise.

在这种情况下， 你会感到铁齿折磨着你的肉体， 用可恶而精确的形象填满你的灵魂。

The iron teeth of the portcullis were drawn down over the mouth of the gate; and as a beast crouched on the mountain-side, the fortress guarded its prey.

闸门的铁齿向下拉过门口。这座堡垒就像一头蹲伏在山边的野兽，守卫着它的猎物。