string(282) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E5%9B%BD%E4%BA%BA%E5%9C%A8%E5%AD%9F%E5%8A%A0%E6%8B%89%E6%89%93%E5%B7%A5%E5%B7%A5%E8%B5%84%E9%AB%98%E5%90%97 => Failed to connect to 14.18.46.51 port 38044: Connection refused"
中国人在孟加拉打工工资高吗
