a and d造句

Carbohydrate , protein and fat which , are needed in much larger amounts are described as macronutrients . animal foods tend to be excellent sources of some minerals and vitamins , particularly iron , zinc , iodine , vitamins a and d , and some of the b vitamins
碳水化合物蛋白质和脂肪的需要量要大得多，称为宏量营养素动物性食品是某些矿物质和维生素，尤其是铁锌碘维生素a和维生素d以及某些b组维生素的重要来源。
Overnutrition can result from overeating ; insufficient exercise ; overprescription of therapeutic diets , including parenteral nutrition ; excess intake of vitamins , particularly pyridoxine ( vitamin b6 ) , niacin , and vitamins a and d ; and excess intake of trace minerals
营养过剩可由摄食过度、缺少锻炼、治疗膳食摄入过度（包括胃肠外营养）、过量摄入维生素，尤其是吡哆醇(维生素b6 ) 、尼克酸和维生素a和d 、以及微量元素摄入过多所致。
It's difficult to find a and d in a sentence. 用a and d造句挺难的

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