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本书配合四年级最新课程与课本编写，是补充与延伸学习的最佳材料。内容图文并茂，深入浅出，帮助学生加深理解、提升记忆。附有精简笔记、额外资讯、线上互动游戏 (Wordwall)，以及 UASA 模拟试卷，让复习更全面、更有效。
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