Similarly, if it is dusty or there are a lot of other larger particles in the air, this will filter out larger wavelengths, resulting in a red sky and red sun.

同样，如果空气中尘埃比较多，或是空气中有很多其它大颗粒，那么那些较长的光波就会被过滤掉，于是天空就会是红色，太阳也会是红色。

youdao

Red sky at night, shepherd's delight; red sky in the morning, shepherd's warning.

傍晚天红，牧羊人高兴；早晨天红，牧羊人当心。

youdao

Morning sunrise dyed red sky, also dyed red our big playground.

早晨，朝霞染红了天边，也染红了我们的大操场。

youdao

She's cocoa brown with the red undertones. She's got the night sky in her eyes, but she wears glitter shirts so she can shine.

VOA: special.2009.04.27

I looked up to the sky and saw the Red Planet Mars.

VOA: special.2010.07.31

The Audit Office traced problems with Red Sky, or its predecessor companies, dating back at least 12 years.

BBC: Red Sky

Last year's audit came after the Housing Executive's contract with the Red Sky maintenance company was terminated in 2011.

BBC: PAC report says Housing Executive is 'out of control'

Some of the problems related to the now defunct Belfast company, Red Sky.

BBC: 'Weaknesses' in NIHE contract management