nutrition deficiency

例句：

1. 1. The child's poor nutrition has affected his growth.
   孩子的营养不良影响了他的成长。
2. 2. She was diagnosed with a nutritional deficiency that required special diets.
   她被诊断出有营养缺乏症，需要特殊的饮食。
3. 3. The elderly often suffer from nutritional deficiencies due to poor dietary habits.
   由于不良的饮食习惯，老年人常常遭受营养缺乏症的困扰。