A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail.
The user sits in the chair and it moves him or her up the stairs.
The user sits in the chair and it moves him or her up the stairs.
أعد كتابة هذه الجملة بطريقة أبسط: A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail. خرج: