被问到的人有一半以上说他们很少锻炼身体。
Over half of those questioned said they rarely took any exercise.
20岁之后，人很少继续长高，长高需要热量和营养物质——特别是蛋白质——以满足身体组织生长的需要。
Growth, which rarely continues beyond the age of 20, demands calories and nutrients—notably, protein—to feed expanding tissues.
每个人都知道锻炼身体的重要但很少人理解你的嗓子也需要锻炼。
Everyone knows the importance of exercising the body but few people realize the voice needs exercise too.
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