對(duì)很多人來(lái)說(shuō)，眼睛的顏色從生下來(lái)那一天開(kāi)始就確定了，而且一輩子不變。但對(duì)另外一些人來(lái)說(shuō)，卻不是這樣。究竟是什么原因會(huì)導(dǎo)致眼睛變色呢？ FivqyT7i  

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It can bend light, bring the world into focus, and next to the human brain may be our most complicated organ. But for many people the most intriguing feature of the human eye is simply its color. H|<Zm:.%$  
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Can it really change for no apparent reason? BBj>ML\X  
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