string(310) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BF%84%E7%BD%97%E6%96%AF%E8%BD%AE%E5%BB%93%E5%9B%BE%E7%AE%80%E7%AC%94%E7%94%BB%E5%B9%B6%E6%A0%87%E6%B3%A8%E9%87%8D%E8%A6%81%E5%9F%8E%E5%B8%82 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
俄罗斯轮廓图简笔画并标注重要城市
