http://api.fanyi.baidu.com/api/trans/vip/translate?q=apple&from=en&to=zh&appid=2015063000000001&salt=1435660288&sign=f89f9594663708c1605f3d736d01d2d4
{
"from": "en",
"to": "zh",
"trans_result": [
{
"src": "apple",
"dst": "苹果"
}
]
}
{
"error_code": "54001",
"error_msg": "Invalid Sign"
}