string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%85%B3%E4%BA%8E%E4%BF%AE%E5%BB%BA%E5%85%AC%E8%B7%AF%E7%9A%84%E5%BB%BA%E8%AE%AE => Failed to connect to 101.91.112.32 port 38221: Connection refused"
关于修建公路的建议
