deficiency

a deficiency of safe play areas for children.儿童安全游戏场地的缺乏

iron deficiency,缺铁；铁缺乏

iron deficiency anemia,缺铁性贫血

mental deficiency,心智缺陷；智力缺陷；精神不健全

acquired immune deficiency syndrome,艾滋病；获得性免疫缺陷综合症

deficiency disease,营养缺乏病

oxygen deficiency,缺氧

nutrient deficiency,营养不足；养分缺乏

vitamin deficiency,维生素缺乏；维生素缺乏症

nutritional deficiency,营养不良