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masses – n. the ordinary or common people
battery – n. a device that is placed inside a machine, such as a clock, toy, or car, to supply it with electricity
accelerate(s) – v. to gain speed
scandal – n. an incident in which people are shocked and upset because of behavior that is morally or legally wrong
emission(s) – n. something sent out or given off
convincing – v. causing someone to believe that something is true
customer(s) – n. someone who buys goods or services from a business
efficiency – n. the ability to do something or produce something without wasting materials, time, or energy
incentive(s) – n. something that convinces a person to do something or to work harder
rental – n. something that can be available for use in return for payment
