undernourishment
n. 营养不良;营养不足
例句
Some of his children died of undernourishment.
他有几个孩子因营养不良而死亡。
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。
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。