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	bozo BP BPO B.P.O.E. bps BR Br. bra brace bracelet bracing bracken bracket brackish Bracknell, Lady brad bradawl Bradbury, Ray Bradford Bradford, Barbara Taylor Bradman, Sir Donald Bradshaw Brady Bunch Brady, Ian brag

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