rainbow
/ˈreɪnbəu; `renˌbo/ n
arch containing the colours of the spectrum, formed in the sky when the sun shines through rain or spray 虹; 彩虹
silks dyed in all (the) colours of the rainbow 染成彩虹那样七种颜色的丝绸服装. `rainbow trout black-spotted trout with two reddish bands from nose to tail 虹鳟鱼（身上有黑点, 从鼻到尾有两条红线）.