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	neaten neat freak neath neatly neatness Nebraska Nebraskan Nebuchadnezzar, King nebula nebular nebulous NEC necessarily necessary necessitate necessity neck neckband neckerchief necking necklace necklet neckline necktie necromancer

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