string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E4%BA%9B%E5%B8%B8%E7%94%A8%E5%9B%BD%E5%AE%B6%E7%9A%84%E8%8B%B1%E8%AF%AD%E5%90%8D%E7%A7%B0 => Received HTTP code 403 from proxy after CONNECT"
一些常用国家的英语名称
