string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9F%BA%E6%9C%AC%E7%9A%84%E8%BF%91%E4%B9%89%E8%AF%8D%E6%9C%89%E5%93%AA%E4%BA%9B%E8%AF%8D%E8%AF%AD => Failed to connect to 125.88.227.171 port 38062: Connection refused"
基本的近义词有哪些词语
