单词	lackadaisical
释义	lackadaisicallack‧a‧dai‧si‧cal /ˌlækəˈdeɪzɪkəl◂/ adjective Word Origin WORD ORIGINlackadaisical Origin: 1700-1800 lackaday expression of sadness (17-19 centuries), from alack the day Examples EXAMPLES FROM OTHER DICTIONARIES a lackadaisical approach to security not showing enough interest in something or not putting enough effort into it:  David has a rather lackadaisical approach to his work.
随便看	boa Boadicea boar board boarder board game boarding boarding card boarding house boarding pass boarding school Board of Education boardroom board shorts boardwalk boast boaster boastful boastfully boastfulness boat boater boat hook boathouse boating

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