footstep
n [C]
1
(a) (usu pl 通常作复数) sound or mark of a step taken when walking 脚步声; 足迹
I heard his footsteps in the hall 我听见大厅里有他的脚步声.
(b) (distance covered by a) step taken when walking 脚步; 一步的距离.
2 (idm 习语) follow in one´s/sb´s footsteps => follow.