彩虹行动 cǎihóngxíngdòng Operation Rainbow Origin Definitions Defs Strokes Stroke Words Sentences Sents 彩虹 cǎihóng noun rainbow multicolored band of light formed in the sky by the refraction and reflection of sunlight through raindrops行动 行動 xíngdòng verbnoun to take action to act or carry out an activity for a specific purpose