1、A healthy body is necessary for a healthy mind. As is known, to have a sound mind, we must first have a sound body. This is of vital importance. Only by keeping ourselves healthy and strong can we feel energetic and vigorous in studying and working and live a happy life.To keep ourselves fit, physical exercise is the best way. In taking part in out-door sports, we are closer to nature and can take in fresh air. The beauty of nature will keep us clear-headed, which is essential to our health. Besides, sports stimulate the circulation of blood and help to excrete the wastes in the body. Sports can also work up our appetite and activate our digestion. As a result, we can become strong-bodied.I always take an active part in physical exercise and enjoy good health. I seldom get sick but feel vigorous even if I work a whole daylong. I shall keep up doing physical exercise so as to live longer and do more for the country.运动和健康健康的身体对于健康的头脑是必要的。

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2、众所周知，要有健全的头脑，就应有健全的身体。

3、这是至关重要的。

4、我们只有保持身体健康，才能在学习和工作中精力充沛，生活愉快。

5、为了保持健康，体育锻炼是最好的方法。

6、参加户外运动，我们能更接近大自然并能吸收新鲜空气。

7、自然界的美使我们头脑清醒，这对健康是极其必要的。

8、另外，运动促进血液循环，有助于排泄体内废物。

9、运动还可以引起食欲，促进消化。

10、这样我们就能身强力壮。

11、我总是积极参加体育锻炼，身体很好。

12、我很少生病，即使工作一整天也感到精力旺盛。

13、我要坚持体育锻炼，争取长寿，为国家多做些事情。

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