string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9C%A8%E9%9F%A9%E5%9B%BD%E9%83%BD%E7%94%A8%E4%BB%80%E4%B9%88%E7%A4%BE%E4%BA%A4%E8%BD%AF%E4%BB%B6 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
在韩国都用什么社交软件
