string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%8B%B1%E8%AF%AD%E8%80%83%E7%BA%A7pet%E5%92%8Cpets%E4%B8%80%E6%A0%B7%E5%90%97 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
英语考级pet和pets一样吗
