string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%86%B0%E7%AE%B1%E5%86%BB%E7%9A%84%E9%A3%9F%E7%89%A9%E6%9C%89%E5%BC%82%E5%91%B3 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
冰箱冻的食物有异味
