adj. unstudied
未学过的
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阅读的材料越多，词汇的复现率就越高，这样每多接触一次，脑子里的记忆就多加深一层，同时，对未学过的词汇和语言现象也有了初次认识。
Reading material more, lexical repetition rate is higher, so that each contact time, mind memory is more deepen one, at the same time, to learn the vocabulary and language phenomena have been met.
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