string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%83%8F%E9%A2%86%E5%AF%BC%E6%8F%90%E5%87%BA%E5%BB%BA%E8%AE%AE%E7%9A%84%E5%8F%A5%E5%AD%90 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
像领导提出建议的句子
