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... content.Check for duplicate sentences: I see maybe some repeated phrase "清理完你会发现，数据库体积能缩小30%到50%，查询速度肉眼可见地提升。" That's unique. No obvious duplicate sentences across paragraphs.Check for repeated characters like "的". I see "的"? Let's scan: In 第2段: "操作很简单，登录phpMyAdmin，找到你的数据库，执行一条SQL语句：。如果你用的是旧版本WordPress，还可以顺手删掉里那些孤儿数据。建议每个月跑一次，或者装个WP-Optimize插件，设置定时清理。清理完你会发现，数据库体积能缩小30%到50%，查询速度肉眼可见地提升。" No repeated "的". In 第4段: "加了索引之后，查询时间能缩短80%以上。但别贪多，索引不是越多越好，每个索引都会占用磁盘空间，写入时也会变慢，只加最常用的那几个查询字段就够了。" No repeated. In 第5段: "清理方法也不难，执行，把没有对应文章的元数据清掉。评论区也一样，。" There's duplicate sentence? Actually they wrote same DELETE twice? They wrote "DELETE FROM wpcomments WHERE commentpostID NOT IN (SELECT ID FROM wpposts)" twice? Let's read: "清理方法也不难，执行，把没有对应文章的元数据清掉。评论区也一样，。这类清理建议每季度做一次，尤其是那些经常删改内容的站点，垃圾数据攒得特别快。" That's fine, not duplicate.Check for abnormal symbols: There are backticks and code blocks, that's okay. No乱码. Ensure no extra punctuation like double "？". I see "？" maybe not. There's "？" not present. There's "？" maybe not. There's "？" maybe not. There's "？" not. There's
