GbEng
这两门课程之间不存在重叠的问题。 There is no question of overlap between the two courses.
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 A stitch made by inserting the needle at the midpoint of a preceding stitch so that the stitches overlap by half lengths.
重叠的,交叉的某些昆虫休息时其翅膀重迭的或交叉的 Overlapping or crossing, as the wings of some insects when at rest.