2011-06-28 How Much Exercise Do You Really Need?
BOB DOUGHTY: This is the VOA Special English program SCIENCE IN THE NEWS. I’m Bob Doughty. SHIRLEY GRIFFITH: And I’m Shuirley Griffith. Today, we will tell why exercise is so…
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BOB DOUGHTY: This is the VOA Special English program SCIENCE IN THE NEWS. I’m Bob Doughty. SHIRLEY GRIFFITH: And I’m Shuirley Griffith. Today, we will tell why exercise is so…
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