He recorded an item for insertion in the programme.他录了一则消息, 准备插播到节目中。

Insertion of the needle is completely painless.扎针没让人感到丝毫疼痛。

the first experiment involving the insertion of a new gene into a human being第一例在人体中插入新基因的实验

He objected to the insertion of the word 'unfortunately'.他反对加上“不幸地”这个词。