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四年级英语（pep）下册 unit 4 let's talk B(跟读版）
四年级英语（pep）下册 let's talk (跟读版）是帮助同学们学习课本中let's talk 部分内容。视频先录制全文一遍，然后每一句话复读3遍，同学们认真跟读，即可有效解决不会读，不会背诵的难题！
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