overlap

n. 重叠,重复
v. 重叠,重复
[计算机] 重叠

There is no question of overlap between the two courses.

这两门课程之间不存在重叠的问题。

A stitch made by inserting the needle at the midpoint of a preceding stitch so that the stitches overlap by half lengths.

回针缝在先前缝的一针中间加缝的一针，以便使针脚的交错重叠为原来长度的一半