The researchers say the acanthothoracid was one of the earliest jawed vertebrates with teeth ever to live.

研究人员表示，acanthothoracid是有史以来最早的有牙齿的颚脊椎动物之一。

The lion is big and strong. He has big teeth.

狮子又大又壮。它有大的牙齿。

These teeth were specifically designed to lock onto prey with slippery scales.

些牙齿有特别的设计能够有滑溜鳞片的猎物。

And then there's something green in your teeth.

然后你牙齿里有绿色的东西。

I hate perfect teeth on monsters, they don't go to dentists.

我讨厌怪物有完美的牙齿，它们又不去看牙医。

The creature had a large skull filled with teeth as well as large limbs.

种生物有一个布满牙齿的巨大头骨，还有巨大的四肢。

This giant tooth right here is the canine tooth of a saber-toothed cat from an animal called Smilodon.

个巨大的牙齿是剑齿虎的犬齿，是一种有巨大牙齿的猫科动物。

With its robust teeth and powerful bite, nothing could withstand its attack.

它有粗壮的牙齿而且咬合力惊人，没有什么能承受它的攻。

This is a great way to insure that they always have a sharp set.

样是保证总是有一副锋利牙齿的好办法。

Each tadpole has a mouth with tiny teeth to gnaw the plants on which it feeds.

每只蝌蚪的嘴巴里都长有细小的牙齿, 用来刮食植物。

You grin. Sure enough, there’s a gap in the top right where the tooth had once been.

你咧嘴一笑果然，右上角曾经有牙齿的地方有一个缺口。

He had razor-sharp teeth, giant claws, and a really mean growl.

他有很锐利的牙齿、巨大的爪子，还有十分可怕的低吼声。

Sharks also have sharp teeth. They are known for being dangerous and eating whatever they want.

鲨鱼也有锋利的牙齿。鲨鱼以危险著称，而且它们会吃下任何想吃的东西。

A guy with four teeth was drinking a beer with my face on it.

一个有四颗牙齿的家伙正在喝啤酒，上面印着我的脸。

He's got puppy teeth and they are not sharp.

他有小狗的牙齿，但并不锋利。

Do our regulatory bodies have enough teeth here to fight back?

我们的监管机构是否有足够的牙齿来反？

Actually, two, because one of them I kind of blackened in some teeth.

其实是两张 有一张的牙齿被我涂黑。

The upper mandible has a tooth-like  protrusion that helps them grab prey.

上颌骨有一个牙齿状的突起，可以帮助它们抓猎物。

I have sharp teeth the same as you, the bat explained.

我和你一样有锋利的牙齿, 蝙蝠解释说。

My dad's a dentist, that's why I have so many teeth.

我爸爸是一名牙医，就是我有么多牙齿的原因。