在很长一段时间里，我们认为所有有牙齿的鲸鱼，包括抹香鲸和虎鲸，彼此都是密切相关的。
For a long time, we assumed that all whales that had teeth including sperm whales and killer whales were closely related to one another.
最新研究让一种生活于恐龙时代以前的有牙齿的水生动物再现于我们的眼前，据科学家说，这种生物的吞食方式就像电影《异形》里的生物一样。
New research is shedding light on toothy Marine animals that lived before dinosaurs and, according to scientists, ate like the creature did in the movie "Alien."
牙齿有一层叫做釉质的坚硬表层。
如果他们生产可口可乐，而你对你的牙齿有任何担心，也许你不应该生产这么多。
If they're producing Coca-Cola and you have any kind of concern for your teeth, maybe you shouldn't produce so much anyway.
它们有不同的形状、大小、颜色、鳍、牙齿、栖息地、饮食、性格、繁殖方式和其他属性。
They have different shapes, sizes, colors, fins, teeth, habitat, diet, personality, method of reproduction, and other attributes.
它们有不同的形状、大小、颜色、鳍、牙齿、栖息地、饮食、性格、繁殖方法和其他属性。
They have different shapes, sizes, color, fins, teeth, habitat, diet, personality, method of reproduction, and other attributes.
他有整齐洁白的漂亮牙齿。
许多食肉恐龙的特征并不是很明显，例如，要么在嘴的前部有“钉状牙齿”，要么就根本没有牙齿。
Many carnivorous dinosaurs have ambiguous features, such as "peg-like" teeth at the front of the mouth, or no teeth at all.
鲨鱼有锐利的牙齿。
我的一位朋友也不例外，他在商队旅馆里有一食品摊位，正朝我咧嘴微笑，露出一排金色的牙齿。
My friend, who has a food stall in the caravanserai, is no exception and grins at me with an entire set of glinting gold.
黄鼠狼家族里最大的陆地居住成员是强有力，坚韧的，有锋利的牙齿而且狡猾。
The largest land-dwelling member of the weasel family is strong, tenacious, sharp-toothed and cunning.
这种风筝在框架的顶部有一个木制的面具——它是一个人头面具——你可以清楚地看到它有一个纹身和一副牙齿。
This is the kind of kite that has a wooden mask at the top of the frame—it's a mask of a human head—and you can clearly see it bas a tattoo and also a set of teeth.
它们牙齿的数目都是混合的；宽吻海豚有88颗牙齿，伪虎鲸有44颗牙齿，全齿鲸有66颗。
Their number of teeth is mixed; a bottlenose has 88 teeth, a false killer whale has 44 teeth, and a wholphin has 66.
据科学家所说，这头史前的海洋爬行类比座头鲸还长，它的牙齿有黄瓜那么大。
The massive prehistoric sea reptile was longer than a humpback whale and had teeth the size of cucumbers, scientists say.
有他在就不用担心她会被冷的牙齿打颤。
Never mind if her teeth were chattering from life-threatening hypothermia.
如果你吸烟，就会沦为狄更斯笔下长有丑陋牙齿的底层民众，他们虐待儿童并且早早地孤独死去。
IF YOU smoke, you will become a gruesome pariah with Dickensian teeth who abuses children and dies early and alone.
一旦宝宝有牙了，他的牙齿清洁问题就由你来决定了。
Once your baby's teeth are in, it's up to you to keep them clean.
请别打我，记住，我有反抗的牙齿，但我不会咬你。
Remerber before you hit me that I have teeth that could easily crushthe bones of your hand, but that I choose not to bite you.
但是，许多食肉恐龙的特征并不是很明显，例如：要么在嘴的前部有“钉状牙齿”，要么就根本没有牙齿。
But many theropod dinosaurs have ambiguous features, such as peg-like teeth at the front of the mouth, or no teeth at all.
如果你有骨质疏松或者牙周疾病的家族史，牙齿检查就更有必要了。
And if you have a family history of osteoporosis or periodontal disease, dental checkups are a must.
有一位国王，梦见自己的牙齿掉光了，于是招来一位智者为其解梦。
Once there was a king who dreamed of all his teeth falling out.
惠普公司和英国牙齿健康基金会发起的有2005人参与的研究或许是最有趣的。
But a 2005 study by Hewlett Packard and the British Dental Health Foundation was perhaps the most intriguing.
甚至饮料的标签'无糖'，'还原糖'或'低糖'仍然可以包含足够的糖，造成损害你的牙齿，并作为碳酸饮料有相同的含量标准。
Even drinks labelled 'sugar free ', 'reduced sugar' or 'low sugar' can still contain enough sugar to cause damage to your teeth, and have the same acids as the standard carbonated drinks.
哪个国家的儿童有最糟糕的牙齿？
这就意味着，这些不断生长的牙齿，可以有规律地脱落磨损部分，以保持边缘锋利。
This means the teeth, which grow continuously, can regularly shed damaged areas to keep a well-honed edge.
很多妈妈给小孩喝牛奶想让他们有强健的骨骼和牙齿。
Many mothers give their children milk to build strong, healthy bones and teeth.
但是幸运的是，有许多美白牙齿的产品可供选择。
But luckily for us, there are tons of whitening products to choose from.
哈尔登的犯人里没有有金牙的。也没有免费的牙齿检查。
No gold teeth among Halden's inmates. Not with free dental checkups.
哈尔登的犯人里没有有金牙的。也没有免费的牙齿检查。
No gold teeth among Halden's inmates. Not with free dental checkups.
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