売ばい買ばい契けい約やくばいばいけいやくじ字FuriganaMeanings1nounsales contract; contract of saleLegal and business term for a formal agreement to buy and sell goods, property, or services.不ふ動どう産さんの売ばい買ばい契けい約やくを結むすぶ前まえに、重じゅう要よう事じ項こう説