模拟浏览器访问 https://translate.google.cn ,获取谷歌免费机翻结果
npm install googlecn
var translate = require('googlecn');
translate('this is China.', {from: 'en', to: 'zh-CN'}).then(result => {
console.log(result);
}).catch(error => {
console.log(error);
});