Simplify the following text for a Grade 10 native English-speaking person.
Original: This is now a source of confusion , as the term `` turbosupercharged '' is sometimes used to refer to an engine that uses both a crankshaft-driven supercharger and an exhaust-driven turbocharger , often referred to as twincharging .
Simplified: The term `` turbosupercharged '' is sometimes used to refer to an engine that uses both a crankshaft-driven supercharger and an exhaust-driven turbocharger . This is also called twincharging .