Rainbow is seen as colorful and cheerful.

彩虹一直被视为色彩斑斓、积极向上的代表。

youdao

Red, yellow, purple, colorful, full, as long as the endless woven brocades, as bright as sky glow, as gorgeous as high altitude of the rainbow.

红的、黄的、紫的，五彩斑斓，万紫千红，像织不完的锦缎那么延绵，像天边的霞光那么耀眼，像高空的彩虹那么绚烂。

youdao

Colorful balloons, Rainbow doors and air popular dancers are used as outdoor advertisement, which are the best choice for exhibition companies to enhance the publicizing of enterprise and brand image.

彩色气球、彩虹门和空中舞星为展场户外广告，是参展商加强企业和品牌形象宣传的最佳选择。

youdao