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。

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.

这种生物有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.

这个巨大的牙齿是剑齿虎的犬齿，这是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击。

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.

你咧嘴笑果然，右上角曾经有牙齿的地有个缺口。

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。

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

这些牙齿有特别的设计能够锁住带有滑溜鳞片的猎物。

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

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击？

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

其实是两张 有张的牙齿被我涂黑。

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

上颌骨有个牙齿状的突起，可以帮助它们抓住猎物。

They have different types of teeth.

他们有不同类型的牙齿。

The song says that Mack has these beautiful, and of course dangerous, teeth.

这首歌说麦克有这些漂亮的牙齿，当然也很危险。

The song begins by saying, " Oh, the shark babe, has such teeth, dear."

这首歌开始就说， “哦，鲨鱼宝贝，有这样的牙齿， 亲爱的。

But it also meant this new watchdog had some real teeth.

但这也意味着这个新的看门狗有些真正的牙齿。