created sense approved 阶梯计价/階梯計價 · jiētījìjià · tiered pricing
阶梯计价 / 階梯計價
jiētījìjià
tiered pricing
a pricing structure where the unit cost changes as the quantity consumed reaches specific thresholds, common in utility billing
为了鼓励节约资源，许多城市对居民用水实行了阶梯计价。