脱发

例句：

1. 1. He has been suffering from alopecia for years.
   他多年来一直遭受脱发之苦。
2. 2. Alopecia is a common cause of hair loss in women.
   脱发是女性常见的脱发原因之一。
3. 3.The doctor prescribed him medication to treat his alopecia.
   医生给他开了药来治疗他的脱发。