relation between supply and demand 基本例句 供求关系 经济 Demand and supply can be balanced.供求关系可加以协调。 A special team of the Commodity Futures Trading Commission said,it is caused by the relation between supply and need but not the congenial.商品期货交易委员会领导的一个特别工作组称，是供求关系而非投机引起的价格飙升。