insertion
noun uk/ɪnˈsɜː.ʃən/ us/ɪnˈsɝː.ʃən/
[ U ]插入，添写（尤指文字）
the act of putting something inside something else, or adding something, especially words to something else
Scientists hope that the insertion of normal genes into the diseased cells will provide a cure. 科学家们希望在病变细胞里植入正常基因会成为一种新的有效疗法。
[ C ]插入（的内容），添写（的文字）
something you put inside something else or something, especially words that you add to something else
Any editorial insertions you make should be enclosed in square brackets. 编辑时增加的任何内容都必须括在方括号里。