忍不住多说几句，有关牙齿仙女

三思

儿子要掉牙了，我预先察看牙齿仙女的文章，有一段这么说的
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The primary useful purpose of the tooth-fairy myth is probably to give children a small reward and something to look forward to when they lose a tooth, a process which they might otherwise find worrisome. It is fun for both parent and child. It also gives children a reason to give up a part of themselves that they may have grown attached to.

Some believe that other useful purposes include giving children a sense of faith in things unseen, believing in the incorporeal, and helping them understand the difference between the real and the imaginary.
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红字部分尤其有道理。神话故事，恰恰是帮助孩子理解现实和现象力的区别。