[VOA] Vietnims

来源: lil 于 2012-05-16 21:56:47 [] [旧帖] [给我悄悄话] 阅读数 : (1223 bytes)
本帖于 2012-05-18 05:52:15 时间, 由版主 林贝卡 编辑

http://space.wenxuecity.com/media/1337230461.mp3

 

 

BOB DOUGHTY: This is SCIENCE IN THE NEWS, in VOA Special English. I’m Bob Doughty.

FAITH LAPIDUS: And I’m Faith Lapidus. This week, we tell about vitamins.

(MUSIC)

BOB DOUGHTY: Many jobs must be done with two people. One person takes the lead. The other helps. It is this cooperation that brings success.

So it is with the human body. Much of our good health depends on the cooperation between substances. When they work together, chemical reactions take place smoothly. Body systems are kept in balance.

Some of the most important helpers in the job of good health are the substances we call vitamins.

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• Lil读得语调很棒！小砖渣见内。 -beautifulwind- ♀ 给 beautifulwind 发送悄悄话 beautifulwind 的博客首页 (851 bytes) () 05/16/2012 postreply 22:33:07

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