Serrated for cutting through stuff, that makes sense.

锯齿状是用来切割的，有道理。

The edges are serrated like a steak knife, very blade like.

边缘像牛排刀一样有锯齿，很像刀刃。

Majungasaurus has serrated teeth. Each one of those little serrations is call a denticle.

玛君龙有锯齿状的牙齿。每一个这样小的锯齿叫做小齿。

They had serrated edges which could used to cut through the flesh of large prey.

们边缘呈锯齿状可以用来切割大型猎物的肉。

Its teeth were very powerful and very robust and serrated on each side.

的牙非常有力且结，两边呈锯齿状。

The steak knives, they are serrated.

牛排刀，们是锯齿状的。

This is not serrated. Looks old, dull.

这把刀没有锯齿 看起来很旧 很钝。

Their teeth were recurved which means they start to point backwards and they were also very blade-like and had serrated edges.

们的牙齿弯曲，这意味着们开始指向，们也是很像利刃边缘呈锯齿状。

They were also serrated on both of front and back edges making them perfect for slicing meat.

而且前边缘都有锯齿，非常适合切肉。

Not only are their teeth curved backwards, they're serrated on both edges. They've got a mouth full of steak knives.

们的牙齿不仅向弯曲，而且两边的还呈锯齿状。们满口都是牛排刀般的牙齿。

And they're certainly sharp, and pointy, and have serrated edges, but they're not really thin, like the blade of a knife.

们当然很锋利尖锐，边缘还有锯齿，不过并不薄，不像刀刃那样。

The edges of the lower mandible are serrated with teeth much more prominent, coarser and sharper than in the duck.

下颌骨的边缘呈锯齿状， 牙齿比鸭子的牙齿更突出、更粗糙、更锋利。

This guy's upper teeth are incredibly long and those teeth are shaped exactly like the blade of a knife, and they are serrated.

这家伙上面的牙齿出奇地长而且那些牙的形状就像是刀刃，而且边缘呈锯齿状。

So it's serrated on one edge, and then it's forked on the tip, and I'll show you how you use it.

所以的一个边缘是锯齿状的，然的尖端是分叉的，我会告诉你如何使用。

What they found were tell-tale serrations meaning the culprit who chewed these bones had serrated teeth and jaws powerful enough to cut the bone.

他们发现了泄露秘密的锯齿痕迹，这表明咬到这些骨头的肇事者拥有锯齿状牙齿，而且颌部有力能够切开骨头。

It was also among the earliest animals to have serrated teeth, making this stem-mammal the perfect Permian butcher, capable of devouring prey quickly and efficiently.

也是最早拥有锯齿状牙齿的动物之一，使这种干哺乳动物成为完美的二叠纪屠夫，能够快速有效地吞噬猎物。

The leaves are small and undivided, mostly without teeth or wavy edging, though on young shoots some are sharply serrated, both kinds being found on the same tree.

叶子小且不裂， 大部分没有牙齿或波浪形边缘， 但在幼枝上有些有尖锐的锯齿， 这两种叶子都在同一棵树上发现。

And finally, we have a large tyrannosaur tooth, where it is much easier to see the serrated, knife-like edge, which would have made cutting flesh much easier.

最，我们有一颗巨大的霸王龙牙齿，的锯齿状刀刃更容易看到，这样切肉就容易多了。

Look at the tooth of any predatory dinosaur, Allosaurus, Ceratosaurus, even Raptors, you'll find that their teeth are more blade-like and are serrated on front and back, very common.

看看任何掠食恐龙的牙齿，异特龙、角鼻龙、甚至迅猛龙，就会发现们牙齿更像刀刃，前都有锯齿，这都很常见。