string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%89%AF%E8%AF%8D%E4%BF%AE%E9%A5%B0%E6%95%B4%E4%B8%AA%E5%8F%A5%E5%AD%90%E4%BE%8B%E5%AD%90 => Received HTTP code 403 from proxy after CONNECT"
副词修饰整个句子例子
