More than 150 Canadian schools now celebrate Blue Day, but Rob won't stop until there's a Blue Day in every school in Canada.

现在加拿大有150多所学校庆祝“蓝色日”，但是罗伯不会停止，直到加拿大的每个学校都有“蓝色日”。

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Blue stands for love, which is why a bride carries or wears something blue on her wedding day.

蓝色代表爱情，这就是为什么新娘在婚礼当天总是佩戴一件蓝色的东西。

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At home, it is a good idea to use energy-efficient lamps with a higher proportion of blue light during the day, and in the evening use ones with the lowest possible amount of blue light.

白天在家里使用蓝光度较高的节能灯是个好主意，在晚上则使用蓝光量可能最低的节能灯。

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The next day the sky was blue and clear.

VOA: special.2009.02.28

Lieutenant Commander Scott Murphy leads the crew. "This is the first day we've been out here and we've had blue skies and 10-15 miles of visibility."

VOA: standard.2010.07.05

And for all Thursday's celebrations - big and small the skies in Beijing were clear and blue, a striking departure from the heavy fog of a day earlier.

VOA: standard.2009.10.01

The thin blue line was black and blue that day.

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On a clear, blue day, gusts of wind buffet down from the peaks, picking up the fresh chill of the snow.

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You know that feeling on a clear blue sky day.

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