string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A2%84%E8%AE%A2%E9%85%92%E5%BA%97%E8%8B%B1%E6%96%87%E5%AF%B9%E8%AF%9D200%E8%AF%8D => Failed to connect to 14.18.117.71 port 38133: Connection refused"
预订酒店英文对话200词
