countermarch

1.【军】反向行进;后退,倒退

2.行为和行事方法的完全转变

1.【军】(使)向相反方向行进

1.[Military]a marching manoeuvre in which soldiers change the direction they are marching in while retaining their positions within a formation

2.a complete change in somebody's behaviour or way of doing things

1.[Military]to change the direction of a formation of marching soldiers without altering the positions of the individual soldiers