iresane

例句：

1. 1.The iridesane of the sun are responsible for our vision.
   太阳的虹膜是我们视力的来源。
2. 2. The iridesane of the eye is responsible for focusing light onto the retina.
   眼睛的虹膜负责将光线聚焦到视网膜上。
3. 3.Irisane is a rare pigment that gives birds their distinctive colors.
   虹膜是鸟类特有的色素，赋予它们独特的颜色。