在2003年的那本《达芬奇密码》中，丹·布朗已经通过看似不可能的曲折情节、历史琐事和游记为前传埋下了线索。

By 2003's The Da Vinci Code, Brown had clearly honed his pop-lit formulation of improbable plot twists, historical trivia and travelogue.

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There's the Diet Code, this is the weight loss secrets of Leonardo Da Vinci, and you probably didn't know this, but see?

还有减肥密码,这是达芬奇的减肥秘诀,你可能并不知道这个,我们来看看

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

That's what happens with Leonardo.

这就是达芬奇的减肥成果

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选