She read much of a desultory sort of literature and as a modern linguist had really made great proficiency .
她阅读了不少乱七八糟的作品，作为一个现代语言学家，她当真是非常熟练的。
Results show that EFL learners, even at the advanced proficiency level, have great difficulty with high frequency function words, such as TO and FOR.
结果显示，中国英语学习者，即使在高级阶段，在运用如TO和FOR等高频率功能词方面仍然有很大的困难。
To a great extent, oral fossilization blocks language learners 'proficiency of the target language.
口语僵化在很大程度上阻碍了语言学习者进一步提高对目的语的熟练程度。
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