A blue eye pigment doesn't actually exist in nature.

蓝眼色素在自然界实际上并不存在。

youdao

The blue glow that surrounds the blue Horsehead's eye — and other stars around the image — is a reflection nebula composed of fine dust.

环绕着蓝色马头的眼睛部位的蓝色光芒——与周围其它恒星——是一个由细尘埃组成的反射星云。

youdao

One quarter of respondents have considered wearing coloured contact lenses to change their eye colour temporarily - and blue is most wanted colour.

四分之一的受访者考虑过通过戴有色隐形眼镜来“暂时”改变一下眼睛的颜色——其中，蓝色隐形最受欢迎。

youdao

Yes,it was this! He had the eye of a bird, a vulture -- a pale blue eye, with a film over it.

VOA: special.2009.05.16

He knew immediately from the bright blue eye shadow in the photo.

CNN: Nurse: Boston bombing victim didn't die alone

The most outrageous offenders are known as ko-gyaru -- girls who sport big socks, short skirts, orange-dyed coiffures and heavy blue eye shadow.

CNN: A SOCK TO THE SYSTEM

It stared out fixed and wild from her quiet, colored face, and why she had wanted a blue eye nobody human would ever know.

NPR: Excerpt: 'The Member of the Wedding'