英语翻译Vitamins（维生素） are a discovery of this century.A hundred

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英语翻译
Vitamins（维生素） are a discovery of this century.A hundred years ago ,no one knew anything about them.The vitamins are named by letters of alphabet.Vitamin A is needed by the eyes.There is Vitamin A in milk,butter and green vegetables.It can be stored by the body.
　　Vitamin B must be supplied （提供） all the time by some of our food.The skins of grains of all sorts have Vitamin B in them.
　　Vitamin C is very important to the body.Without it people's teeth will become loose and their arms and legs become weak.Oranges and tomatoes have Vitamin C in them.
　　There are other vitamins.But these A,B,C are the most important.
要人工翻译，

维生素是本世纪（20世纪）的一个发现,100年前,没有人知道维生素是什么.维生素是以字母来命名的.维生素A是眼睛必需的物质.牛奶,奶油还有绿色蔬菜里都含有维生素A.它可以被身体储藏起来.
维生素B必须通过一些食物持续供应给身体.各种谷物的壳里都含有维生素B.
维生素C对身体也是很重要.没有它,人们的牙齿会疏松,手脚也会变得软弱无力.橙子和西红柿里含有维生素C.
还有其它种类的维生素,但维生素A,B,C是最重要的.
以上

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