string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AF%B9%E8%B7%A8%E5%A2%83%E7%94%B5%E5%95%86%E7%9A%84%E8%A7%81%E8%A7%A3%E5%92%8C%E8%AE%A4%E8%AF%86 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
对跨境电商的见解和认识
