最后，比起第二语言学习者，无论是自然双语者还是后天双语者，他们对两种语言的精妙之处和细微差别都有较为深刻的认识。

Finally, born bilinguals often have a greater appreciation of the subtleties and nuances of both their languages than someone who learns their B language later in life can ever hope to have.

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此题问的是成功的语言学习者是如何学习语言的。文章的第二、三、四自然段开头的第一句话就是问题的答案，即。

First of all, successful language learners are independent learners. Successful language learning is active learning. Successful language learners are learners with a purpose.

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学习者语料库是通过收集语言学习者各种笔语和口语的自然语料而建立起来的一种语言学习数据库。

A learner corpus is a language data bank collecting and processing all sorts of written and oral language materials of language learners.

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