光照阶段 guāngzhàojiēduàn photostage Origin Definitions Defs Strokes Stroke Words Sentences Sents 光照 guāngzhào noun illumination illumination; light or brightness from the sun or a lamp, often as a condition for biological growth and development阶段 階段 jiēduàn noun stage stage; phase; level; a distinct period or section within a process of development