► 名詞売買  [(1)ばいばい]    
meaning:  trade  rank: 3☆ 売買契約 ⇨ A sales and purchase agreement, contract  
(☛ Seller to sell and buyer to buy)☆ 
麻薬の売買は
違法だ ⇨ Sales and purchase of narcotics are illegal  
(☛ Seller to sell and buyer to buy)More examples:- 物品の売買契約 ⇨ A sales/purchase contract for a tangible item