flat Don't worry about the meter,m a'ma.It's broken.I' ll charge you a flat two dollars for the ride.

flat Don't worry about the meter,m a'ma.It's broken.I' ll charge you a flat two dollars for the ride.
flat
Don't worry about the meter,m a'ma.It's broken.I' ll charge you a flat two dollars for the ride.

flat Don't worry about the meter,m a'ma.It's broken.I' ll charge you a flat two dollars for the ride.
固定的两块钱

表示只要
我只收你两块钱。

平价

应该是“只要”的意思吧...

不要担心太太，计费表是坏的，我只收你平价两元。（这让我想起了平价超市，哈哈）