n.彩虹；adj.五彩缤纷的；彩虹状的；vt.&vi.使呈彩虹状； 变形： 复数：rainbows 双语释义：n.(名词)[C]彩虹 many-coloured arch seen in the sky or in spray when the sun shines through falling drops of water英英释义： rainbow[ 'reinbəu ]n.an arc of colored light in the sky caused by refraction of the s