rainbow

/ˈreɪnˌboʊ/

an arc of colored light in the sky caused by refraction of the sun's rays by rain

中文释义：彩虹

After the storm, a beautiful rainbow appeared in the sky.

暴风雨过后，天空中出现了美丽的彩虹。

The children were excited to see a double rainbow over the lake.

孩子们看到湖上出现双彩虹时非常兴奋。