"We'll need to wait for all the girls to enter puberty before we have a good grasp on what the contribution is of those environmental chemicals."
VOA: special.2010.08.18
It is very rare, for instance, for somebody who has learned English past puberty to speak without an accent.
比如,在青春期后才学习英语的人,很少有讲英语是没有口音的
Around seven years of age going up through puberty, the ability to learn language starts to go away.
大约七岁的时候开始,一直到青春期,学习语言的能力逐渐减弱
And once you hit puberty, suddenly there's huge variation in the abilities you have to learn language.
一旦你到了青春期,学习语言的能力会在突然间,发生巨大的变化
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