Owls are the only birds that can see the colour blue.

猫头鹰是唯一能看见蓝色的鸟类。

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It may be nothing more than an association with big skies and the open seas, but beholding the colour blue makes you more creative.

没有什么将广阔的天空和大海相联系更好的事了，当然，身处于蓝色的世界也可以让你更富有创造力。

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Blue and white is the classic colour combination for bathrooms. It always looks smart and will never date.

蓝色和白色是浴室的经典色彩搭配，看起来总是很时髦，永远不会过时。

《柯林斯英汉双解大词典》

As they age, the heads and legs become white and the fleece assumes a colour ranging from blue-grey to light grey.

BBC: Protected status for Lakeland Herdwick sheep

Windows with the shutters and curtains closed show up in the images in a deep blue colour, demonstrating little heat is escaping.

BBC: Shutters and curtains 'act as double glazing'

This is used to generate a matte - which is transparent wherever the blue-colour features on the original film, and opaque elsewhere.

BBC: Blue and green-screen effects pioneer Petro Vlahos dies