string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%90%84%E4%B8%AA%E5%9B%BD%E5%AE%B6%E7%9A%84%E5%BD%A2%E5%AE%B9%E8%AF%8D%E5%92%8C%E5%90%8D%E8%AF%8D%E7%9A%84%E5%BD%A2%E5%BC%8F => Failed to connect to 14.18.117.71 port 38041: Connection refused"
各个国家的形容词和名词的形式
