这个结论基本正确
其实也说明了要把英语学得和母语一样，成本是非常高的，也是不必要的，性价比很低。对于中国大多数家庭是负担不起这个成本的，而且也不需要学到这个程度。
【 在 smallpapaya 的大作中提到: 】
: [upload=1][/upload]
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: “In general, the younger he is when both languages are introduced, the more proficiently he'll learn them; by contrast, he may have a little more difficulty learning the second language if he is introduced to it during the PRESCHOOL YEARS only after learning and speaking the first language exclusively."
: ...................
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FROM 223.104.39.*