- [uncountable, countable] insertion (in/into something)
the act of putting something inside something else; a thing that is put inside something else 插入；嵌入；插入物 - [countable, uncountable]
a thing that is added to a book, piece of writing, etc.; the act of adding something （书、文章等中）添加的东西；添加；插入 the insertion of an extra paragraph 插入一个附加段落
Word Originmid 16th cent. (in sense (2)): from late Latin insertio(n-), from Latin inserere, from in- ‘into’ + serere ‘to join’.