in a cast, also UK: in plasterexprexpression: Prepositional phrase, adverbial phrase, or other phrase or expression--for example, "behind the times," "on your own."
(broken limb: cast in plaster) (断肢)
上石膏,用石膏固定
Julie's arm was in plaster for six weeks after she fell out of a tree. The technician put the injured man's leg in a cast.