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	safe conduct safe-deposit box safeguard safe haven safe house safekeeping safely safe passage safe sex safety safety belt safety catch safety curtain safety-deposit box safety glass safety lamp safety match safety net safety officer safety pin safety razor safety valve Safeway saffron Safire, William

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