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	tele- telecare telecast telecommunications telecommuter telecommuting Telecom Tower teleconference teleconferencing telegenic telegram Telegraph telegraph telegrapher telegraphic telegraphist telegraph pole telemarketing telemedicine telepathic telepathy telephone telephone banking telephone book telephone booth

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