VOA慢速英语2013.05.16 activity, exercises, difference, 英语, 老年人

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Dr. Gold says knowing a second language made no difference for the young adults. They did better at the exercises than both groups of older people. But he says the older bilingual adults appear to have built up a kind of surplus from a lifetime of increased mental activity.戈尔德博士表示,掌握第二门语言对年轻人来说没什么区别.他们在练习中比两组老年人表现更好.但他表示,双语老年人似乎通过一辈子高强度的心智活动建立了一种盈余.
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