1. Some of his children died of undernourishment. 他有几个孩子因营养不良而死亡。
2. What with overwork and what with undernourishment his brother became very ill. 一方面因为工作过度，一方面因为营养不良，他哥哥病得很重。
3. What with overwork and what with undernourishment, he became weaker and weaker. 半因工作过度半因营养不良，他越来越虚弱了。
4. The ill effects of undernourishment on fetal development have been well documented. 营养不足对胎儿发育的不良影响已经得到了很好的文献证明。
5. A child's immune system may be weakened by malnutrition or undernourishment, especially in infants who are not exclusively breastfed. 营养不良或营养不足可使儿童免疫系统虚弱，尤其是在非完全母乳喂养的婴儿中。
