Artificial intelligent assistant

lacuna

lacuna
/ləˈkju:nə; lə`kjunə/ n
(pl -nae / -ni:; -ni/ or ~s) (fml 文) section missing from a book, an argument, etc; gap (书籍、 论据等中的)脱漏, 阙文, 缺漏, 空白
    a lacuna in the manuscript 原稿中的脱漏.

牛津英汉双解词典

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