真太阳日 zhēntàiyángrì real solar day Definitions Defs Origin Strokes Stroke Words Sentences Sents 真太阳日 真太陽日 zhēntàiyángrì real solar day The time unit required for one full rotation of the Earth relative to the sun.
真太阳日 真太陽日 zhēntàiyángrì real solar day The time unit required for one full rotation of the Earth relative to the sun.
