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benefit – n. a good or helpful result
review – n. report in a publication that gives an opinion about a product
contest – n. a competition
battery – n. a device for providing electric current
vapor – n. substance in the form of a gas or that consists of very small drops or particles mixed with the air
genuine – n. real, sincere or honest
surrogate – n. a person that takes the place or performs the duties of someone else
promote – v. give support to or make people aware of something
platform – n. a way of telling the public about your opinions
