string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%BF%91%E4%B9%89%E8%AF%8D%E5%A4%A7%E5%85%A8%E9%9B%86%E5%9B%9B%E5%B9%B4%E7%BA%A7%E4%B8%8B%E5%86%8C => Failed to connect to 125.88.227.171 port 38062: Connection refused"
近义词大全集四年级下册
