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国家地理:龙卷风来袭大难不死

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A tornado rips across the Missouri Plains. Winds over 150 miles per hour shred everything in the twister's path.

龙卷风在密苏里平原肆虐横行。风速高达每小时150英里,撕碎了前进路上的一切障碍。
When it smashes a trailer home, one man is sucked into the heart of the storm, spun and shaken horrifically.
当它打道回府的时候,一名男子被吸进风眼,恐怖地旋转摇摆。
His limp body drops out of the sky a quarter of a mile away.
他软弱的身体最终从1.25英里的高空落下。
"It was crazy. I knew that I wasn't where I supposed to be, and it took me a minute to realize, you know, what was happening."
“简直太疯狂了。我知道我应该在哪里。你知道,我用了一分钟的时间才明白发生了什么事。”
Matt hasn't broken a single bone. How could that be? Scientists estimate Matt hit the ground traveling at least 30 miles an hour.
Matt毫发未损。为什么会这样呢?科学家估计Matt落到地面时的速度至少每小时30英里。
Yet his bones protected his internal organs from being smashed.
但是他的骨头保护他的内脏器官免收损害。
"Lock the door." "Got it."
“锁门。” “收到。”

龙卷风来袭大难不死.jpg

Our skeleton is made up of 206 bones, from the largest in our legs and arms to the tiny bones in our toes and fingers.

我们的骨架由206块骨骼组成,从四肢的最大的骨骼到手指脚趾的细小的骨头,
They give us the tough flexible frame that lets us push and pull on our will.
组成了我们坚硬有弹性的框架,使我们可以伸缩自如。
Bone is incredibly strong.
骨骼坚硬的不可思议。
Pound for pound, bone is stronger than concrete. It has a strength-to-weight ratio found in no other natural material on earth.
均等重量下,骨头比水泥还坚硬。它有这很高的力量重量比率,地球上的其他物质都没有发现。
The secret of bone's strength and lightness lies inside. It is a matrix of hollow cells; its walls are as thin as paper.
骨头的力量大,重量却很轻,秘密在于骨头里面。它是由一系列空细胞组成的,细胞壁像纸一样薄。
Bone gets its rigidity from calcium and phosphorus, materials found in seashells and teeth.
骨骼坚硬是由于钙和磷,这些物质同样存在于贝壳和牙齿中。
But astonishingly, almost half of our bone mass is soft and alive, allowing our bones to bend.
但是令人惊讶的是,我们骨骼中几乎一半的物质是柔软的,活动,可以使我们的骨骼弯曲。
Every seven years, a healthy human body completely replaces every single bone cell.
每七年,健康的人体的骨骼细胞会更新一遍。
This renewal keeps our bones incredibly strong and uniquely adaptable.
这种更新使我们的骨骼异常坚硬,适应性奇强。

重点单词   查看全部解释    
covering ['kʌvəriŋ]

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n. 覆盖物,遮避物 adj. 掩护的,掩盖的

 
internal [in'tə:nəl]

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adj. 国内的,内在的,身体内部的

 
rigidity [ri'dʒiditi]

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n. 硬,硬度,刻板

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intend [in'tend]

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vt. 想要,计划,打算,意指

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concrete ['kɔnkri:t]

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adj. 具体的,实质性的,混凝土的
n. 水

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adaptable [ə'dæptəbl]

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adj. 能适应的,适应性强的,可改编的

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tornado [tɔ:'neidəu]

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n. 飓风,旋风,龙卷风

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limp [limp]

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n. 跛行
adj. 柔软的,无力的,软弱的<

 
renewal [ri'nju:əl]

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n. 更新,革新,复兴,复活

 
cell [sel]

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n. 细胞,电池,小组,小房间,单人牢房,(蜂房的)巢室

 

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