string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B8%B8%E8%A7%81%E7%9A%84%E4%BA%8C%E5%8D%81%E4%B8%AA%E5%9B%BD%E5%AE%B6%E8%8B%B1%E6%96%87%E5%8F%8A%E5%BD%A2%E5%AE%B9%E8%AF%8D%E5%92%8C%E5%90%8D%E8%AF%8D => Failed to connect to 101.89.117.144 port 38017: Connection refused"
常见的二十个国家英文及形容词和名词
