1、fiat英[ˈfiːæt]美[ˈfiːæt]，n.(当权者的)法令，命令，谕。

2、[例句]Taking an Uber ride a short distance for Rmb8 is two-thirds the price of a ride in a licensed taxi, whose fares are already held low by government fiat.用优步短途出行只需要8元人民币，是乘坐有牌照出租车的价格（已经被政府法令压低了）的三分之二。