前言 #1894个字，含标题共约67行，每段字数控制在大约为【】内所标示的范围内以保持整体平衡和阅读流畅性（实际写作时请根据具体内容调整）。markdown-content: {"total_words": "","linebreaks":[{"start":"前情提要\n","end":{"wordcountRangeStartLineIndex ": -Infinity, "_lastWordCountEndingOnThisRowIncludingSpacesAndNewlinesBeforeNextPartOfContentOrEndOfArticleIfLastSectionIsLongerThanOneParagraph/Sentence ":"+Math.ceil(Number((("总目标字符数") / ("每个段落平均期望的字词数量"))))}},"_nextSegmentStartingWithTextAfterBreakHere"}]