Toothless unlocked his jaws as wide as they would go.

无牙张开了他的下巴，张得尽可能大。

It opened its jaws so wide Hiccup could see right down its black throat.

它张开了下巴，以至于卡嗝可以看到它黑色的喉咙下面。

Instead of having an upper jaw that was vertically split in half, these new skulls showed that Atopodentatus actually had a hammerhead, with wide jaws that poked out to the sides and even more exceptionally specialised teeth.

这些新头骨并没有垂直分成两半的上颚，而是表明 Atopodentatus 实际上有一个锤头，宽大的下颚向两侧伸出， 甚至还有更特别的牙齿。