我希望将以下文本变得更加通俗易懂：Fans of J.K. Rowling's Harry Potter series may be dismayed to hear that the franchise's marketing does not always accurately describe the content. For instance, the marketing often portrays the series as purely light and fun, which can set up unrealistic expectations for new readers. While the Harry Potter books do contain many humorous elements and feel-good moments, they also deal with serious and complex themes like death, betrayal, and moral ambiguity. Readers who join the series expecting only lighthearted entertainment might be in for a rude awakening as they encounter these darker elements.
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喜欢 J.K. 罗琳的《哈利·波特》系列的粉丝可能会觉得有点失望，因为这个系列的宣传有时候并不完全准确。比如，宣传常把《哈利·波特》描绘成一个特别轻松有趣的故事，这可能会让新读者产生不切实际的期待。当然，《哈利·波特》确实有很多有趣和温馨的情节，但也有不少关于死亡、背叛和道德模糊的严肃主题。如果新读者抱着只想享受轻松娱乐的心态去读，可能会被这些更黑暗的部分吓到。
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