albinoism

例句：

1. 1. Albinos are rare and have a genetic condition that causes them to appear white in color.
   白化病患者非常罕见，他们患有一种遗传性疾病，导致他们看起来是白色的。
2. 2. The albinos were the only ones who could see the stars at night.
   这些白化病患者是唯一可以在夜晚看到星星的人。
3. 3. Albinos are often misunderstood due to their unusual appearance.
   由于他们的外貌与众不同，白化病患者常常被误解。