• 讨价
• 要价

Demandolx德芒多demandn.要求；需求v.要求；查问；需要demand fulfilment percentage需求满足百分率demand of lifelong education终身教育需求demand-driven architecture需求驱动体系结构demand preference similarity需求偏好相似demand-accumulation effect需求累积效应demand-supply relationship供求关系Demand for cotton is down.棉花的需求下降了。demand of chemical fertilizer化肥需求量demand-and-supply balance供求平衡demand repayment of past debt追索欠债

1. Govern by supply and demand, price is the invisible hand in economics.
   在经济生活中，价格是看不见的手，取决於供给与需求关系。