1 ADJ [ADJ n] (衣服)三件套的(通常包括男式上衣、马甲和裤子) A three-piece suit is a set of three pieces of matching clothing, usually a man's jacket, waistcoat, and trousers. (衣服)三件套的(通常包括男式上衣、马甲和裤子)

2 ADJ [ADJ n] (沙发)三件套的 A three-piece suite is a sofa and two matching armchairs. (沙发)三件套的 [mainly British]