[영작] Why are the people living longer now? (장수의원인)

소개글

고급영작문시간에 제가 정성들여 쓴 것입니다.
교수님께 이미교정도 다 받은것이구요. 부족하지만 조금이나마 도움이 되셨으면 좋겠어요^^

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본문내용

The biggest cause is as the society changes and develope it promoted the increase of ways to make more sound health for human. And, because of life style changes and medical breakthroughs, today many persons live to reach old age.
Life expectancy has increased a year or two in each recent decade. Today the average life span is 75.5 years, compared with 47 at the beginning of the 20th century.

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