array(6) {
  ["q"]=>
  string(30) "United Kingdom#England#London#"
  ["appid"]=>
  string(17) "20190908000332922"
  ["salt"]=>
  float(1770554321932)
  ["from"]=>
  string(2) "en"
  ["to"]=>
  string(2) "zh"
  ["sign"]=>
  string(32) "292754a6ec9c888d8103b6c4aae3aeae"
}
string(52) "{"error_code":"54004","error_msg":"Please recharge"}"