a curved band of different colours that appears in the sky when the sun shines through rain
人教精通版小学《英语》
索思英语解码单词（第240个）——rainbow彩虹
上一篇：海中建筑师—珊瑚虫
a curved band of different colours that appears in the sky when the sun shines through rain
人教精通版小学《英语》
