string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%A8%E4%B8%8D%E5%90%8C%E7%9A%84%E5%85%B3%E8%81%94%E8%AF%8D%E8%AF%AD%E6%8A%8A%E4%B8%8B%E9%9D%A2%E4%B8%A4%E5%8F%A5%E8%AF%9D%E5%90%88%E5%B9%B6 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
用不同的关联词语把下面两句话合并
