同义替换　suffering n. 痛苦，苦难 poorness n. 穷困；匮乏poverty n. 贫穷，穷困 grief n. 悲痛；不幸
nutrition [nju?tr??n] n. 营养，营养学
例句　People who sleep less than 7 hours a night tend to have a higher body mass index than people who sleep more,according to data gathered by the US National Health and Nutrition Examination Survey. 美国国家健康与营养评估调查显示，每天睡眠不足7个小时的人可能会比那些睡得较多的人有更高的身体质量指数。
衍生　nutritional adj. 营养的；滋养的