Old English renboga; see rain (n.) + bow (n.). Common Germanic compound (Old Frisian reinboga, Old Norse regnbogi, Swedish regenbåge, Dutch regenboog, German Regenbogen). Rainbow trout (1876, American English) so called for its resplendent colors. Old English also had scurboga "shower-bow."
权威例句
1. The moon was casting a rainbow through the spray from the waterfall.
月亮在瀑布溅起的水雾上照出了一道彩虹。
2. The Rainbow has not hosted live music since the end of 1981.