string(303) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%A8%E5%85%B3%E8%81%94%E8%AF%8D%E8%BF%9E%E6%8E%A5%E4%B8%A4%E5%8F%A5%E8%AF%9D%E7%9A%84%E5%8F%A5%E5%AD%90%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 101.89.117.144 port 38208: Connection refused"
用关联词连接两句话的句子有哪些
