He tends to view the world through rose-coloured spectacles.

他总是戴着玫瑰色的眼镜看世界。

《牛津词典》

Optimists really do seem to look at the world through rose-coloured glasses.

乐观主义者看来确实是通过只看好的一面来观察世界。

《柯林斯英汉双解大词典》

In a world where a syllable can get you killed, having differently coloured skin is a pretty strong brand of identity. However, it is not a unique signal.

在一个不正确的发音就可以让你送命的世上，拥有不同的肤色是相当有价值的身份标志，然而并非唯一的标志。

youdao

One wall of the pub was covered with different coloured bottle tops from around the world, and a globe sat by the bar, presumably to help patrons locate the many countries from which the brews originate.

BBC: Krakow brews a beer scene of its own

Another example of his unorthodox thinking is his observation that painting the roofs of buildings around the world white and using light-coloured road surfaces rather than blacktop would reflect a lot of sunlight back into space possibly enough to have an effect on global warming as big as taking every car in the world off the road for a decade.

ECONOMIST: Face value

Old-world primates, though, are big on visual communication, with coloured faces and (in the case of females) coloured sexual swellings.

ECONOMIST: Smell, vision and genes: More colour, less odour | The