rain.bow
rainbow的音标和读音：
DJ音标发音： [ˈreinˌbou]
KK音标发音： [ˈrenˌbo]
rainbow的词性：
n.（名词）
1. 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：由于雨滴或雾滴对阳光有折射分光作用，使空中太阳对面出现的一道有七色光谱的弧
2. A similar arc or band, as one produced by a prism or by iridescence.
似彩虹：类似的弧或带子，如三棱镜或分光镜造成的
3. A graded display of colors.
五彩缤纷的排列：颜色的分级显示
4. An illusory hope:
幻想：虚幻的希望：
chasing the rainbow of overnight success.
追寻一夜成功的梦
5. A diverse assortment or collection.
五花八门的聚合：种类众多的集锦或收集物
rainbow的词源：
6. Middle English
中古英语
7. from Old English r?nboga
源自 古英语 r?nboga
8. r?n [rain]
r?n [雨]