Read Edit View history 热源 rèyuán heat source Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 热源/熱源 · rèyuán · heat source 2026/03/04 热源 / 熱源 rèyuán heat source heat source 太阳是地球主要的天然热源。 noun created sense Mar 4, 2026, 02:25 AM