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%8F%91%E8%A8%80%E5%BC%80%E5%A4%B4%E8%AF%AD%E8%8C%83%E4%BE%8B => Failed to connect to 14.18.117.71 port 38041: Connection refused"
会议发言开头语范例
