three-piece
adj consisting of three separate pieces 三件一套的
a ,three-piece `suit, ie a set of clothes consisting of a skirt or trousers, a blouse and a jacket for a woman, or trousers, a waistcoat and a jacket for a man 三件式套服(女服為裙或褲加襯衫和外套, 男服為西裝衣褲加西裝背心)
a ,three-piece `suite, ie a set of three pieces of furniture (usu a sofa and two armchairs) 三件一套的家具(通常指一個長沙發和兩個單座沙發). =>illus at App 1 見附錄1插圖, page xvi.