string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B0%88%E4%B8%80%E8%B0%88%E4%BD%A0%E5%AF%B9%E8%B7%A8%E5%A2%83%E7%94%B5%E5%95%86%E7%9A%84%E4%BA%86%E8%A7%A3 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
谈一谈你对跨境电商的了解
