短語詞組短語purple e sulfur bacteria 紫色硫細(xì)菌photosynthetic purple non -sulfur bacteria 光合紫色非硫細(xì)菌purple non -sulfur photosynthetic bacteria 紫色非硫光合細(xì)菌non -sulfur purple bacteria 無硫紫細(xì)菌 返回 purple sulfur bacteria