A cash transaction common in many industries, including commodity merchandising, in which a commercial buyer and seller agree upon delivery of a specified quality and quantity of goods at a specified future date.

• 很多行业包括商品交易中的一种通用现货交易方式，在交易中，买方和卖方约定在将来的确定时间交付约定质量和约定数量的商品。