The moon was casting a rainbow through the spray from the waterfall.

月亮在瀑布溅起的水雾中映出了一道彩虹。

《柯林斯英汉双解大词典》

That is a rainbow in the sky.

那是天空的一道彩虹。

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In the Chinese tradition, the rainbow is a common symbol for marriage because the colours represent the union of yin and yang.

在中国的传统中，彩虹是婚姻的普遍象征，因为它的颜色代表着阴阳的结合。

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Live orchids form a rainbow of colors in the Botanic Garden's conservatory building.

VOA: special.2010.04.06

The rainbow is set up as a symbol of the eternal covenant, a token of the eternal reconciliation between the divine and human realms.

彩虹，作为契约生效的标志,标志着神与人之间的永久共存。

耶鲁公开课 - 旧约导论课程节选

Upstairs was Over the Rainbow, a private club where we continued the party after hours.

NPR: 'The Harder They Fall': Fame and Addiction

We decided on the Rainbow for a meeting place, and based on our conversations, here are some of Chuck's reflections and memories.

NPR: 'The Harder They Fall': Fame and Addiction

It is believed it will be the first time the rainbow flag, a symbol of gay pride, has been displayed in the Isle of Man.

BBC: Isle of Man homophobia 'still a problem'