你知道一尺究竟有多长吗？
没人知道这个过程究竟有多长，但可能会持续几年。
No one knows how long this growth process takes, but it may go on for years.
由于说谎者不得不编造一个与事实片段相交叉的故事，他们会难以判断要编造的故事究竟有多长，以至于增加很多不必要的细节在里面。
Since they have to create an alternate reality apart from the truth, liars have difficulty knowing how much of the new story to tell and will often include unnecessary details.
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