string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BC%9A%E8%AE%AE%E5%AE%A4%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%98%AF%E5%A4%9A%E5%B0%91 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
会议室的面积是多少
