英语学习者分为三组：初学者、中级学习者和特殊英语学习者。
There are three groups of English learners: beginners, intermediate learners, and learners of special English.
这本书是针对中级学习者的。
本研究在回顾国内外听力测试影响因素相关研究的基础上，对60名汉语中级学习者进行了问卷调查。
The paper, following a review of related studies at home and abroad on the influential factors of listening comprehension, conducts a questionnaire survey among 60 intermediate Chinese learners.
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