a curved band of different colours that appears in the sky when the sun shines through rain 虹;彩虹 all the colours of the rainbow 彩虹的各種顔色
Extra ExamplesTopics Weatherc1- (figurative)
Every year the Dutch bulb fields burst into a rainbow of colours. 每年荷蘭的球莖田地都會迸發出五彩缤紛的色彩。 - (figurative)
A rainbow of medals decorated his chest. 五顔六色的勳章挂滿他的胸前。
Oxford Collocations DictionaryRainbow is used before these nouns:- coalition
Word OriginOld English regnboga (see rain, bow2).