1、For the South, pellagra was more than simply a medical problem.
對于南方，糙皮病是不僅僅是一個醫(yī)學問題。

2、Pellagra is a disease that results from niacin deficiency.
糙皮病是一種由煙酸缺乏引起的疾病。

3、Pellagra is caused by a severe deficiency of biologically available niacin in the diet.
飲食中嚴重缺乏有利人體的 * 酸就造成糙皮病。

pellagra翻譯