彩虹
an arch of colors visible in the sky, caused by the refraction and dispersion of the sun's light by rain or other water droplets in the atmosphere.
示例:• After the storm, a beautiful rainbow appeared in the sky.暴风雨过后，天空中出现了一道美丽的彩虹。• The children were amazed by the vibrant colors of the rainbow.孩子们被彩虹鲜艳的颜色惊呆了。同义词:irisbowarc of colors