purchasing power
noun [ U ] uk/ˈpɜː.tʃə.sɪŋ ˌpaʊər/ us/ˈpɝː.tʃə.sɪŋ ˌpaʊ.ɚ/
（个人的）购买力
A person's purchasing power is their ability to buy goods
The purchasing power of people living on investment income has fallen as interest rates have gone down. 随着利率的下降，靠投资收入为生的人们的购买力也下降了。
（货币的）购买力
the value of money considered as the amount of goods it will buy
The purchasing power of the average hourly wage has risen in the last five years. 在过去5年内，每小时的平均工资的购买力上升了。