A Harvard anthropologist has proposed that using fire to cook food could be dated back to almost two million years and that it could explain hominid features like having a large brain and small teeth.
哈佛大学的一位人类学家提出，用火做饭可以追溯到近200万年前，这可以解释人类的一些特征，比如大脑大，牙齿小。
Africans keep a small stick in their mouth to chew or scrub their teeth all day.
非洲人整天把一根小木棍放在嘴里咀嚼或刷洗他们的牙齿。
These early pterosaurs all had a mouth full of teeth, usually small at the back and larger at the front.
这些早期翼龙嘴里都长满了牙齿，通常来说，小的牙齿长在后面，大的牙齿长在前面。
Both its mouth and tongue are lined with small, sharp teeth, preventing the prey from making a getaway.
它的嘴和舌头上都排列着小而尖的牙齿，以防止猎物逃跑。
Analysis of Ardi's teeth points to a diet of figs and other fruit, leaves and small mammals.
通过对阿迪牙齿的分析表明阿迪平常所吃的食物是无花果以及其它水果、树叶和小型哺乳动物。
Behold, I will make thee a new sharp threshing instrument having teeth: thou shalt thresh the mountains, and beat them small, and shalt make the hills as chaff.
看哪，我已使你成为有快齿打粮的新器具，你要把山岭打得粉碎，使冈陵如同糠。
Curly black hair, brown skin, big black eyes, handsome nose, fine teeth, small hands and feet, taller than I am, very polite, for a boy, and altogether jolly.
卷曲的黑头发，棕色皮肤，黑色的大眼睛，好看的鼻子，牙齿洁白，手脚不大，比我略高，显得温文尔雅，不乏风趣。
Even routine daily actions, such as brushing one's teeth, turning the pages of a newspaper or dressing a small child would easily defeat today's robots.
哪怕是些简单的日常动作，例如刷牙、翻报纸、给小孩子穿衣服都能难倒现在的机器人。
NASA said the crew had sent down video and photographs of a small star-shaped gear with two broken teeth. Experts were trying to determine whether it was related to the problem.
NASA说乘员已经下传了有关一个断了两个齿的小型星型齿轮的视频和图像。
The chewing surfaces of back teeth are rough and uneven because they have small pits and grooves.
后磨牙的咀嚼面是粗糙和不平的，因为它们有小的凹陷和沟槽。
If you look in this small hand mirror, you can see the red stains on your teeth.
你要是看一看这一小口镜你就看得到你牙齿上的红色的染色。
Teeth don't have skin, so it was likely an allusion to something small or so thin that it was insubstantial.
然而牙齿并没有皮肤，所以这一说法可能代指小、纤薄而不重要的东西。
Miss White:Well, some whales have teeth and eat large animals. Some whales have no teeth and eats only small fish and plants in water.
MissWhite:好，一些蓝鲸有牙齿就可以吃大的动物，一些蓝鲸没 有牙齿就吃水里的小鱼和植物。
It looked so alive! It opened its mouth and made the special noise of that animal. It had small sharp white teeth.
它看上去活蹦乱跳！它张开嘴，发出一声这种动物特有的叫声。它长着又小又尖的白牙齿。
Great whites have jaws and teeth that are perfect for a powerful chomp on prey ranging from small fish to large marine mammals .
大白鲨的嘴巴和牙齿是一副功能强大的捕猎工具：猎物从小型鱼类到大型海洋哺乳动物。
Curiously, waiting a long time for a small rabbit hunting dogs that actually did not feel sharp teeth, and a dog than a long, gentle tongue.
奇怪的是，等待了良久的小兔子居然没有感受到猎狗那尖利的牙齿，却比及了猎狗长长的、温顺的舌头。
The spores are produced on small teeth or lamellae rather than gills.
孢子都是由子实体的小齿或小孔中产生而不是在菌褶上产生。
When we enjoy the food at the time, please prepare for them a proper size, easy to chew a small bowl, because they do not like teeth are not likely to move.
当我们在享受食物的时候，请替他们准备一份大小适当、容易咀嚼的一小碗，因为他们不爱吃可能是牙齿咬不动了。
In a small portion of patients, cysts and tumors occur around impacted wisdom teeth, requiring surgical extraction.
一小部分患者还会因为阻生智齿而出现囊肿和肿瘤，需要手术摘除。
They found an average of 12 per cent – one in eight – had tooth decay ranging from small holes, needing fillings or having teeth extracted.
他们发现平均有12%即八分之一的儿童有蛀牙问题，包括牙齿有小洞、需要补牙和拔牙等。 。
There were small noises of comprehension around the table. A broad, hunched woman with pointed teeth cackled.
桌子周围发出轻轻的、恍然大悟的声音。一个宽肩膀、驼背、牙齿尖尖的女人咯咯地笑了起来。
First, brush your teeth the inside surface of you teeth. Always move your brush in small circles.
首先，刷你牙齿的内表面，让你的牙刷在一个小圈内不停的移动。
I did the same thing for the actual teeth of the zipper, taking small segments at a time and placing it around the edge of our outer cat's face.
对于拉链的拉齿，也采用同样的办法处理，将小段小段的拉齿摆放到猫脸的边缘上。
Bilayer gears, crown gears, bevel gear, wheel, Helical, Worm, safety clutch teeth, small modulus gear and steering gear copper server.
双层齿轮、皇冠齿轮、伞齿轮、滚轮、斜齿、蜗杆、安全离合齿、小模数铜齿及舵机伺服器等。
The system includes the mouth, esophagus, stomach, small intestine and large intestine. Other organs of the digestive system include the salivary glands, teeth, pancreas, liver, and gall bladder.
此系统包括口、食管、胃、小肠和大肠。消化系统其它器官有唾液腺、牙齿、胰、肝和胆囊。
But lizards are small, and they have delicate teeth, so it is very difficult for them to eat and chop off very tough material.
但蜥蜴是很小的，它们只有脆弱的牙齿，因此它们很难取食和咀嚼非常粗硬的材料。
He stood on a small stool, brushing his teeth at the side of the pool, and then he slipped and fell down and scraped his leg.
他站在小凳子上，在水池边刷牙，然后他滑了一下，摔倒的时候刮了他的腿。
He stood on a small stool, brushing his teeth at the side of the pool, and then he slipped and fell down and scraped his leg.
他站在小凳子上，在水池边刷牙，然后他滑了一下，摔倒的时候刮了他的腿。
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