accelerator – n. a pedal in a vehicle that is pressed down to make the vehicle go faster

commission – n. a group of people who have been given the official job of finding information about something or controlling something

circuit-breaker– n. a switch that automatically stops the flow of electricity to a place or device if the current becomes too strong or another dangerous problem occurs

regulate – v. to set or adjust the amount, degree, or rate of (something)
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