A quarter of children born to two brown-eyed parents who have both brown and blue-eye genes among their ancestors will have blue eyes. The rest will be brown.

如果夫妻俩都是褐色眼睛，但双方的祖辈中既有褐色眼睛也有蓝色眼睛，那他们生蓝眼睛孩子的几率为四分之一，生褐色眼睛孩子的几率为四分之三。

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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。

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In 2008, scientists from the University of Copenhagen, found that all people with blue eyes were descended from a single ancestor with a blue eye mutation who lived six to 10, 000 years ago.

2008年，哥本哈根大学的科学家们发现所有蓝眼睛的人都有一个共同的祖先，这位祖先生活在10,000年以前，眼睛出现蓝色变异。

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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

They walked past thin columns of water at the entrance into an open space, where various objets--an oversize ceramic head and an eye-catching blue glass vessel, for example--sat among high-tech showers, whirlpools, sinks and an oval-shaped toilet, all displayed on pedestals like museum pieces, the better to bring in customers.

FORBES: Magazine Article

In his dress blue uniform and wire-rimmed eye glasses, the slightly built Manning followed a slide show of the prosecutor's hour-long opening statement, watching on a laptop computer at the defense table.

NPR: Prosecutor: Manning Dumped Info Into Enemy Hands

Ms Jiricna's eye-popping, blue-lit, glass spiral staircase connects the main hall with a new mezzanine floor.

ECONOMIST: The V&A's new jewellery gallery has much to show off about