string(310) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%A7%E8%BF%9E%E5%92%8C%E6%B2%88%E9%98%B3%E5%93%AA%E4%B8%AA%E5%9F%8E%E5%B8%82%E6%AF%94%E8%BE%83%E5%A5%BD%E7%82%B9%E5%91%A2%E8%8B%B1%E8%AF%AD => Failed to connect to 14.18.117.71 port 38220: Connection refused"
大连和沈阳哪个城市比较好点呢英语
