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我们为什么有指纹?

时间：2015-12-23 05:27:08

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（单词翻译）

Why do we have fingerprints1?
我们为什么有指纹？
Many experts think it's to improve grip, but a British study from a few years back suggests otherwise.
 
Researchers found that a fingerprint's ridges2 actually madeit harder to hold flat, smooth surfaces, like Plexiglas, because they reduced the skin’s contact area.
 
Instead, they think our prints might help wick water off our fingertips or allow our skin to stretch more easily, which can protect it from damage and help prevent blisters3.
 
Other scientists have suggested fingerprints could improve our sense of touch.
 
What we do know for sure is that no two people's fingerprints are the same, even among identical twins.
 

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1 fingerprints 9b456c81cc868e5bdf3958245615450b     
n.指纹( fingerprint的名词复数 )v.指纹( fingerprint的第三人称单数 )
参考例句：
  • Everyone's fingerprints are unique. 每个人的指纹都是独一无二的。
  • They wore gloves so as not to leave any fingerprints behind (them). 他们戴着手套，以免留下指纹。 来自《简明英汉词典》
2 ridges 9198b24606843d31204907681f48436b     
n.脊( ridge的名词复数 )；山脊；脊状突起；大气层的)高压脊
参考例句：
  • The path winds along mountain ridges. 峰回路转。
  • Perhaps that was the deepest truth in Ridges's nature. 在里奇斯的思想上，这大概可以算是天经地义第一条了。
3 blisters 8df7f04e28aff1a621b60569ee816a0f     
n.水疱( blister的名词复数 )；水肿；气泡
参考例句：
  • My new shoes have made blisters on my heels. 我的新鞋把我的脚跟磨起泡了。 来自《现代汉英综合大词典》
  • His new shoes raised blisters on his feet. 他的新鞋把他的脚磨起了水疱。 来自《简明英汉词典》

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