footsteps
A footstep is the sound or mark that is made by someone walking each time their foot touches the ground.
I heard footsteps outside.
我听到外面的脚步声。
follow in someone's footsteps
If you follow in someone's footsteps, you do the same things as they did earlier.
My father is extremely proud that I followed in his footsteps and became a doctor.
我父亲感到非常自豪,因为我继承父业,成了医生。