📒 to work in a particular way
📒 to use or control a machine or make it work
📒 to manage a business, organization or service
📒 to work, especially in a particular way or from a particular place
📒 to be used or working; to use something or make it work
📒 to cut open somebody’s body in order to remove a part that has a disease or to repair a part that is damaged
📒 to be involved in military activities in a place