Refers to making textual errors or typos, specifically miswriting one character for another (like '鱼' for '鲁', '帝' for '虎'). It generally denotes inaccuracies or mistakes in written text.
这份报告草稿里有不少鱼鲁帝虎的错误，得花时间认真核对。
The draft of this report contains many textual errors, so it will take time to carefully check them.
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