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肯请各位高人帮我手译成中文

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肯请各位高人帮我手译成中文
Among all the malignancies (恶性肿瘤) lung cancer is the biggest killer:more than 10,000 Americans die of the disease a year.Giving up smoking is one of the obvious ways to reduce the risk,but another answer may lie in the kitchen.According to a new report,even heavy smokers may be protected Nom developing lung cancer by a simple dietary measure:a daily portion of carrots,spinach or any other vegetable or fruit containing a form of vitamin A called carotene (胡萝卜素)
The finding,published in the British medical journal The Lancet,is a part of a long-range investigation of diet and disease.Since 1957 a team of American researchers has monitored the dietary habits and medical histories of 2,000 middle-aged men employed by the Western Electric Co.in Chicago.Led by k Richard Shekelle of Chicago‘s Rush-Presbyterian-St.Luke’s Medical Center,the researchers recently began to sort out the links between the subjects’ dietary patterns and cancer.Other studies of animals and humans have suggested that vitamin A offers some protection against lung cancer.The connection seems logical,explains Shekelle,since vitamin A is essential for the growth of the epithelial (上皮的) tissue that lines the airways of the lungs.
But the earlier research did not distinguish between different forms of the vitamin.Preformed vitamin A is found mainly in liver and dairy products like milk,cheese,butter and eggs.But vitamin A is also made in the body from carotene,which is abundant in a variety of vegetables and fruits,including carrots,spinach,squash (南瓜),tomatoes,sweet potatoes and apples.
肯请各位高人帮我手译成中文
在所有的恶性肿瘤中,肺癌是最大的杀手:美国每年约有1万多人死于肺癌.戒烟是降低罹患肺癌风险的最有效途径之一,但是另一个答案却隐藏在厨房中.根据一项最新报告显示,即使是重度吸烟者也可以通过简单的饮食措施来控制肺癌的恶化:每天食用一定比例的胡萝卜、菠菜或者其它含有维生素A(也称为胡萝卜素)的蔬菜水果.
刊登在英国医学杂志《柳叶刀》上的这项发现,是一组关于食谱和疾病联系的广泛研究中的一部分.自1957年起,一个美国学者团队开始追踪芝加哥西部电力公司的2000名中年男性雇员的饮食习惯和用药历史.在~k Richard Shekelle领导的Rush-Presbyterian-St. Luke医学中心,学者们最近开始整理被追踪者的饮食模式和癌症的联系.其它关于动物和人类的试验表明维生素A能够对肺癌形成一些抵御.Shekelle解释说这种联系是很有逻辑性的,因为维生素A是促使连接肺部的上皮组织生长的必要元素.
但是早起研究并没有将维生素的不同形式区别开来.预成型维生素A主要存在于肝脏、包括牛奶和奶酪等的奶制品、黄油和鸡蛋中.但是维生素A也可在体内由胡萝卜素合成,很多蔬菜和水果都含有丰富的胡萝卜素,比如胡萝卜、菠菜、南瓜、西红柿、红薯和苹果等.