Focus on the pronunciation of mile
English definition of “mile”
/maɪl/ noun [C]
go the extra mile › to make more effort than is expected of you: To be successful, you need to be willing to go the extra mile for your customers.
miles an/per hour (abbreviation mph) › MEASURES, TRANSPORT used for saying how fast a vehicle, plane, etc. is travelling or can travel: The speed limit on UK motorways is 70 miles per hour.
miles per gallon (abbreviation mpg) › MEASURES, TRANSPORT used for saying how much fuel a vehicle uses: The car does around 40 miles per gallon in town.