英语翻译Not until the beginning of the twentieth century was it

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/04/28 01:58:50

英语翻译
Not until the beginning of the twentieth century was it recognized that certain substances were essential in the diet to prevent or cure some disease,there substances are now known as vitamins,they are vital for growth,good health and maintenance of the normal functions of the body,a well-balanced diet should provide all the vitamins we normally require,those of us who are fortunate enough to be able to buy sufficient food should not suffer from vitamin efficiency,however,for various reasons,some people do not maintain a balanced diet,people often lose their appetite because of illness,people living alone may not bother to eat proper meals,and people on a diet may not eat sufficient quantities of necessary foods.的中文翻译,快,
不要那种在线翻译器翻译出来得噢,

直到二十世纪之初是公认的某些物质是基本的饮食来预防和治疗疾病,目前已知物质维生素,他们在增长,身体健康,维护正常的功能,你的身体平衡饮食应提供各种维生素,我们通常要求,我们之间的一些人很幸运,能够可以买到足够的食物不应遭受维生素效率,然而,由于种种原因,有些人不能保持平衡饮食,人们经常失去食欲因为生病,人们可能不会费心独居吃一顿饭,而人们节食可能不吃食物充足的必要.

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