名詞 rainbow:

1. an arc of colored light in the sky caused by refraction of the sun's rays by rain
2. an illusory hope

1. Now we can bask in the rainbow of the memories that we'll nurture in the years ahead.
   在未來歲月里，讓我們在記憶的長虹里永遠珍藏對他的懷念。
2. Round about, piles of lime- stone glistened in all the colours of the rainbow.
   周圍一堆堆的石灰石，在彩虹一樣的斑斕色彩中閃閃發(fā)光。
3. Do you see rainbow?
   你看到彩虹了嗎？
4. A rainbow is usually seen after a heavy rain.
   大雨之后常有彩虹。

rain.bow

n.（名詞）

An arc of all seven spectral colors appearing in the sky opposite the sun as a result of the refractive dispersion of sunlight in drops of rain or mist.
彩虹：由于雨滴或霧滴對陽光有折射分光作用，使空中太陽對面出現(xiàn)的一道有七色光譜的弧
A similar arc or band, as one produced by a prism or by iridescence.
似彩虹：類似的弧或帶子，如三棱鏡或分光鏡造成的
A graded display of colors.
五彩繽紛的排列：顏色的分級顯示
An illusory hope:
幻想：虛幻的希望：
例句：
chasing the rainbow of overnight success.
追尋一夜成功的夢

A diverse assortment or collection.
五花八門的聚合：種類眾多的集錦或收集物

來源：
Middle English
中古英語
from Old English rônboga
源自 古英語 rônboga
rôn [rain]
rôn [雨]
boga [bow] * see bow 3
boga [弓] *參見 bow3