小牛犊有两下颚，但只有一张嘴。
猫鼬强有力的下颚能够一下子杀死一条蛇。
The mongoose's powerful jaws can dispatch a snake in one blow.
那位拳击手看准了机会，猛击对手的下颚。
The boxer saw his chance and struck out at his opponent's jaw.
刹那间，鲨鱼用它有力的下颚抓住了一条大鱼。
In a flash the shark caught its victim, a large fish, in its powerful jaws.
刹那间，鲨鱼用它有力的下颚咬住了一条大鱼。
In a flash, the shark caught its victim, a large fish, in its powerful jaws.
事实证明，海豚的下颚主要负责捕捉返回的声波并将它传输到内耳。
It turns out that the jaw is primarily responsible for capturing and transferring returning sound waves to the dolphin's inner ear.
它的头骨与鲸类相似，但它的下颚骨没有现代鲸鱼用来接收水下声音的、充满脂肪或油脂的扩充空间。
The skull is cetacean-like but its jawbones lack the enlarged space that is filled with fat or oil and used for receiving underwater sound in modern whales.
穆兰勉强一笑，露出下颚的牙齿，发出善意的轻笑。接着她又回到现有的话题上。
Mulan gave me a pathetic lower-teeth-revealing smile and grunted a charity chuckle. Then she got back to the topic at hand.
放松你的下颚让你的嘴巴打开。
呼气时进一步放松下颚骨并按摩。
Release your jaw further and massage deeper with each exhale.
埋葬虫拍击它们父母的下颚。
请注意下颚骨是如何联锁而形成坚墙的。
Notice how the original jawbones interlock to form sturdy walls.
詹森脸部多处损伤，他的下颚是再造的。
Jensen has a reconstructed jaw and much of his face is damaged.
因为当人们俯卧的时候，下颚会比平时更加突出。
When people sleep on their front, their lower jaw is positioned further forward than normal.
人类的牙齿及下颚由于烹饪的发明而变得越来越小。
Human molars and jaws responded to the invention of cooking by getting smaller.
坚利的牙齿和下颚说明这只霸王龙肯定是个可怕的猎手。
With its powerful jaws and teeth, T-Rex was a terrifying predator.
这些蚂蚁通过互相抓住彼此的下颚和侧爪，聚集在一起。
The ants connect by gripping each others’ mandibles and claws.
研究者们相信这种下颚的结构和特征与鸟类和非鸟类恐龙均具有联系。
The structure and characteristics of the jaw are associated with birds and not non-avi
门牙是分布于口腔下颚前方的八颗牙齿，四颗在上，四颗在下。
Incisors are the eight teeth at the front of your mouth — four at the top, four at the bottom.
但食指放在下颚上方时，同时用你的拇指深入地按摩舌头底部。
While resting your index fingers on your chin, simultaneously use your thumbs to massage deeply into the base of your tongue.
一块带有三只臼齿的下颚骨在犹他州韦恩郡的千湖山1万英尺高处被发现。
A jawbone with three molars was found 10, 000 feet up Thousand Lake Mountain in Wayne County, Utah.
一块带有三只臼齿的下颚骨在犹他州韦恩郡的千湖山1万英尺高处被发现。
A jawbone with three molars was found 10,000 feet up Thousand Lake Mountain in Wayne County, Utah.
这种3英尺长的鳄鱼以植物和幼虫为食，它下颚上长着一对龅牙用来挖掘食物。
This 3-foot-long croc was a plant - and grub-eater with a pair of buckteeth in the lower jaw it used to dig for food.
用猛犸骨头、下颚骨和头骨建造房屋，在旧石器时代的猛犸狩猎文化中很普遍。
The use of mammoth bones, jaws, and skulls to build structures was common among the mammoth-hunting cultures of the Upper paleolithic.
男人可能会抬起下颚，坐直身子，无意识地交叉手臂，大声笑或微笑。
A man might jut out his chin, try to make his chest appear as large as possible, unconsciously flex an arm, laugh aloud, and smile.
研究者们在对科莫多龙进行核磁共振成像时发现，在它的下颚处长有复杂的毒腺。
When the researchers performed an MRI of a dragon, they found in its jaws what they called the most structurally complex reptile venom gland known.
在棚屋底部，猛犸下颚骨交叉连结——这一巧妙设计在多数猛犸狩猎遗址都能看到。
The mammoth jaws used at the base were interlocked -- a clever technique found at most of the mammoth hunter sites.
7/13河豚下颚肌肉发达，能够像鳄鱼般凶狠，“咔嚓”一声咬断长喙下的猎物。
A boto's jaw muscles can snap its elongated beak down on prey with crocodilian ferocity.
7/13河豚下颚肌肉发达，能够像鳄鱼般凶狠，“咔嚓”一声咬断长喙下的猎物。
A boto's jaw muscles can snap its elongated beak down on prey with crocodilian ferocity.
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