A lift is very good.It's really only a small room,and the room usually stays in one place. Lifts go up and down all day.
Sometimes a worker stands in the lift , He or she operates it up and down,In modern lifts,there is no worker, The people walk in ,they know what floor they want to go.They push a button and the lift hoes up to that floor.It's very fast and easy.
Lifts are vert important to us.Why?Think about a tall building .Maybe it has twenty floors.Maybe it has fifty or more.Who can walk up all the stairs?Maybe people can climb them one time.Can someone climb thirty-forth floor?Can their mother and father carry food up to all those stairs?Of course not.
We can have very high buildings because we have lifts.We could not have all the beautiful buildings without lifts.Because it is too tired for people to climb the stairs every day.