string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BB%99%E9%A2%86%E5%AF%BC%E6%8F%90%E5%BB%BA%E8%AE%AE%E6%80%8E%E4%B9%88%E8%AF%B4%E5%A7%94%E5%A9%89 => Received HTTP code 403 from proxy after CONNECT"
给领导提建议怎么说委婉
