单词	check digit
释义	check digitˈcheck ˌdigit noun [countable] technical the number on the far right of a bar code. It is used to check that the information on the bar code is correct.
随便看	big name big noise bigot bigoted bigotry big pharma big-screen big screen big shot Big Sisters big society Big Ten Big Three big ticket big time big-time big toe big top big wheel bigwig bijou bike biker bikini Bikini Atoll

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