belly buttons

To wear low-cut jeans showing belly buttons and dye your hair brown are not the fashion .

穿低腰牛仔，露肚脐以及把头发染成多种颜色并不是时尚；

Scientists found 2368 different species of bacteria living in belly buttons after swabbing the navels of just 60 people .

科学家们在60名志愿者的肚脐上提取样品，发现我们的肚脐眼里可以找到2386种不同的细菌。

The reason why black people make better sprinters and white people dominate swimming races has been explained by scientists-it 's down to their belly buttons .

为什么黑人擅长短跑而白人是游泳比赛的常胜将军？科学家给出了新解释，这是由肚脐的位置决定的。

Research has been done on the diversity of bacteria , fungi and other organisms that live on our skin , in our guts , even in our belly buttons . But there are other entire ecosystems that surround us . And scientists want to understand how they differ based on how and where we live .

对生存在我们皮肤，内脏甚至肚脐李的很多病毒，真菌和其他一些原核微生物已经做过调查研究，但是在我们的周围有其他的生态系统，科学家想根据我们怎样和在何地生活来理解他们的不同。