医生小心地将导管插入病人的静脉。

The doctor performed the ___insertion of the catheter into the patient's vein carefully.

这份报告需要添加一个插入内容来解释图表数据。

This report needs an ___insertion to explain the chart data.

基因突变是由两个碱基对的插入引起的。

The genetic mutation resulted from an ___insertion of two base pairs.

在解剖实验中，我们标记了肱二头肌在桡骨上的附着点。

During the anatomy lab, we marked the ___insertion of the biceps muscle on the radius bone.