现在的孩子们都需要更多锻炼的机会，但很多父母都认为，让孩子独自出去很不安全。
Today kids need more opportunities for exercise, but many parents feel it’s not safe for them to walk alone.
最近的一项研究表明，97%的青少年需要更多的锻炼。
A recent research shows 97% of the teens need more exercise.
众所周知，为了减掉多余的体重，我们需要吃得更少，锻炼更多。然而，研究表明有一些其他的诀窍让你甩掉赘肉。
We all know that in order to lose weight we need to eat less and exercise more - but research suggests there are a few other tricks when it comes to shedding the pounds.
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