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教科书级自学指南——想让孩子学好外语，父母要先努力学习方法
不需要上培训班，不需要花培训费，也能学好英语。
不上培训班，不花培训费，也能学好英语。3/13
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不需要上培训班，不需要花培训费，也能学好英语。
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