翻译一小篇英语（简单）通顺的话加分
The vitamins are named by letters of the alphabet.
Vitamin A is needed by the eyes. There's Vitamin A in milk,butter and green vegetables.It can be kept by the body.
Vitamin B can't be kept. It must be given all the time by some of the food we eat. The skins of grain of all sorts have Vitamin B in them.
Vitamin C is very important to the body. Without it men's teeth become loose and their arms and legs weak.Lemons,oranges and tomatoes have Vitamin C in them.
Vitamin D is the sun vitamin. We get it in milk and eggs and from sunlight on our skin. There're other Vitamins, but these A,B,cand D are the most important.