A walking robot is part of Ford's vision for how its autonomous vehicles deliver packages and goods in the future. The robot known as Digit, designed and built by Agility Robotics, walks upright on two legs, goes up and down stairs and can carry packages weighing up to 40 pounds, navigate stairs and go around unexpected obstacles.
Difficult words :
Doorstep: a step or one of a series of steps leading from the ground to a door.
Unfolds: to bring out of a folded state; spread or open out
Tackle: to undertake (a task, problem, etc)
Uneven: not level or flat; rough; rugged
Clumsy: awkward in movement or action