求翻译：difficulties in doing reading practice; they found it difficult to learn more new words and useful expressions. so they hoped that they could do it after class under more concrete direction of the teacher. Thirdly, most students felt overloaded because of a heavier homework assignment. The problem had been troubling me for a long time and now I was determined to find a solution to the problem. In my study, I used four methods of analysis: Analytic method, Cause analysis, Questionnaire survey, Brainstorming activation.是什么意思？

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