n.彩虹;
例句:
Next to the Rainbow and also painted red.
旁边还画着红心和彩虹.
When the sun shines through a light rain, it makes a rainbow.
当太阳的光线穿过小雨时便形成了虹.
...silk brocade of every colour of the rainbow.
彩虹般五颜六色的绸缎