出牙

Often I have visitedthe New York Museum of Natural History to touch with my hands many of theobjects there exhibited, but I have longed to see with my eyes the condensedhistory of the earth and its inhabitants displayed there - animals and theraces of men pictured in their native environment; gigantic carcasses ofdinosaurs and mastodons which roamed the earth long before man appeared, withhis tiny stature and powerful brain, to conquer the animal kingdom; realisticpresentations of the processes of development in animals, in man, and in theimplements which man has used to fashion for himself a secure home on thisplanet; and a thousand and one other aspects of natural history.

但我渴望亲眼看到地球和那里陈列的地球上居民的浓缩历史－－－在他们自然环境里展示出的动物和人类种族；曾在人类出现之前，很早就在地球上漫游的巨大恐龙和柱牙象骨架，人类以他小巧的身材和强有力的大脑征服了动物王国；动物，人类和人类工具的发展过程的逼真展现，人类曾用这些工具在这个星球上来建造他们安全的家园，还有其它许许多多的自然历史方面。

Both male and female walruses have tusks and have been observed using these overgrown teeth to help pull themselves out of the water.

雄海象和雌海象都有长牙并被观察到用它们巨大的牙齿将自己拉出水。

These brain regions are known to play important roles in the pain projection system, yet none showed major differences between the two toothaches.

这些大脑区域都是在疼痛射影系统中启着重要作用的部分，可是没有一个区域对两种牙疼显示出显著的不同。

In particular, the researchers found that regions in the cerebral cortex, including the somatosensory cortex, the insular cortex and the cingulate cortex, all behaved similarly for both toothaches.

研究员发现特别是大脑皮层区域，包括躯体感觉皮质、岛叶皮质和扣带回皮质，对两种牙疼都表现出相似的反应。

Scientists have so far identified more than 700 specimens, including the skull of a prehistoric American lion and the bones of dire wolves, saber-tooth cats, ground sloths and bison.

科学家们已经鉴定出700多种样本，包括史前美国狮子的头骨，可怕的狼和有着象刀牙的猫，和树櫴和野牛。

Total of 363 extracted mandibular first premolars were collected and numbered.

筛选出广东珠三角人离体下颌第一前磨牙363颗。

The first four Yankees batters of the game reached base and scored, and backup catcher Wil Nieves got his first hit of the 2007 season in the sixth inning -- his first in the Major Leagues since 2002 with the Padres.

在这场比赛中洋基的前四棒努力的上垒及得分，而第一号候补捕手尼安凡斯也在六局下半击出了他在这个球季的第一支安打--他在大联盟出赛中的第一支安打是在2002年出战圣地牙哥教士队。

Base on what is mentioned above, the paper recommend the load angle range of Forsus and scope of condylar reconstruction.

在此基础上给出了Forsus加载角度推荐范围、髁突生长改建范围和第一磨牙远中平移效果的方法。

While globalisation has opened new markets to rich-world companies, it has also given birth to a pack of fast-moving, sharp-toothed new multinationals that is emerging from the poor world.

当全球化为富裕世界的公司打开新市场的时候，同时它也已贫穷世界催生出许多正在兴起的高速发展、牙坚齿利的新跨国公司。

I ask Mawu to drill a hole on the iron with his sharp teeth, make a clear break of semicircle and raise the cover of the can.

我便教玛乌，先用尖牙扎穿铁皮，然后顺势划出一个半圆，这样就能将盒盖掀起了。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。