Here is the paragraph we used for the dictation exercise today, compare it to the one you wrote: 


Electric cars are a variety of electric vehicle; the term "electric vehicle" refers to any vehicle that uses electric motors. While an electric car's power source is not always an on-board battery, electric cars with motors powered by other energy sources are generally referred to by a different name: an electric car powered by sunlight is a solar car, and an electric car powered by a gasoline generator is a form of hybrid car

 


Refers to= means; is talking about

On-board battery= a battery that is in the car

Generator= a device that makes/converts energy