malnutrition atrophy

例句：

1. 1. The child's poor diet is a major cause of his malnutrition.
   孩子的饮食习惯不良是导致他营养不良的主要原因。
2. 2.Malnutrition can lead to serious health problems if left untreated.
   如果不治疗，营养不良可能会导致严重的健康问题。
3. 3. The elderly often suffer from malnutrition due to a lack of access to healthy food.
   由于缺乏健康食品的获取机会，老年人往往遭受营养不良之苦。