string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AD%9F%E5%8A%A0%E6%8B%89%E5%B7%A5%E8%B5%84%E6%B0%B4%E5%B9%B3 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
孟加拉工资水平
