string(278) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B8%A6%E5%AE%BDmbps%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D%E5%91%80%E8%8B%B1%E6%96%87%E7%BF%BB%E8%AF%91 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
带宽mbps是什么意思呀英文翻译
