string(228) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B0%B7%E6%AD%8C%E5%95%86%E5%BA%97paypal%E5%AE%98%E7%BD%91 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
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