【今日VOA】Vitamins 欢迎砖头。

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.

所有跟帖： 

• 读得好！很难找到砖头 -同学小薇- ♀ (910 bytes) () 05/15/2012 postreply 19:43:43

• 谢谢小薇 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 15:42:45

• 金帝读得很棒啊！小砖渣见内。 -beautifulwind- ♀ (1115 bytes) () 05/15/2012 postreply 19:50:59

• 多谢金耳朵，今晚有机会我再练一次 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 15:42:18

• 金大侠读的好。 -EnLearner- ♂ (1180 bytes) () 05/15/2012 postreply 19:53:22

• 谢谢愚公，今晚有时候我重录 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 14:57:40

• the last "substances" sounds a little bit strange to me -sportwoman- ♀ (0 bytes) () 05/15/2012 postreply 20:10:06

• 是重音不对吧？ -金迷- ♂ (0 bytes) () 05/16/2012 postreply 14:56:19

• very good reading. -midnightblue- ♀ (1267 bytes) () 05/15/2012 postreply 20:26:03

• 非常准确，谢谢给砖 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 14:55:53

• Very good! -NewVoice- ♀ (99 bytes) () 05/16/2012 postreply 04:04:01

• 这个我也不是很清楚，因为我在加拿大，这里的人发音千奇百怪，我也不知道哪个是标准 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 14:55:12

• Jimmy, I posted a video, please take a look. -NewVoice- ♀ (0 bytes) () 05/16/2012 postreply 18:21:37

• 金帝这章读得很好，进步明显。 -bingli- ♂ (1136 bytes) () 05/16/2012 postreply 04:21:41

• 二师兄你的评论很帅！鼓励一下 -sportwoman- ♀ (0 bytes) () 05/16/2012 postreply 04:43:22

• 多谢兄弟，你果然很帅 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 14:52:57

• 念得很好，两块小砖渣。 -2msmom- ♀ (741 bytes) () 05/16/2012 postreply 11:05:58

• 谢谢，我记住了 -金迷- ♂ (0 bytes) () 05/16/2012 postreply 14:51:07

• 有飞跃！顶金帝！ -非文学青年- ♀ (0 bytes) () 05/16/2012 postreply 17:11:38