Rainbow arches across colorful sky.
Meaning: An arc of colorful light in the sky forms a curved shape from one side to the other.
Choice of Words: Rainbow is an arc of colorful light in the sky that is caused by the refraction and dispersion of sunlight. Arches means to form a curved shape. Across means from one side to the other. Colorful means having many different colors. Sky is the upper limit of the atmosphere.
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