translate (npx https://gist.github.com/azasypkin/e3e3526c7bb73223ac53b5cb126ecfae /absolute-path/en.json zh-cn)

index.js

#!/usr/bin/env node

const fs = require('fs');
const translate = require('google-translate-api');

const [,, enFile, targetLocale] = process.argv;

console.log(`File ${enFile}, translate to locale ${targetLocale}`);

const en = require(enFile);
const target = targetLocale;
const translations = {};
const keys = Object.keys(en);

function translateNextKey() {
    if (keys.length === 0) {
        console.log(translations);
        const str = JSON.stringify(translations, null, 2);
        fs.writeFile(`${target}.json`, str, { encoding: 'utf-8'}, () => console.log('done'));
        return;
    }
    
    const key = keys.pop();
    if (key === 'formats') {
        translations[key] = en[key];
        return translateNextKey();
    }
    
    console.log(`Translating ${key}:${en[key]} to ${target} (left ${keys.length})`);
    
    translate(en[key], { from: 'en', to: target })
        .then(trans => {
            translations[key] = trans.text;
            setTimeout(() => translateNextKey(), 100);
        }, err => {
            console.error(`Error during translation of ${key}: `, err);
            console.log('Change IP address and press any key');

            process.stdin.setRawMode(true);
            process.stdin.resume();
            process.stdin.once('data', () => {
                keys.push(key);
                setTimeout(() => translateNextKey(), 100);
            });
        });
}

translateNextKey();

package.json

{
  "name": "tr",
  "version": "1.0.0",
  "bin": "./index.js",
  "license": "MIT",
  "dependencies": {
    "google-translate-api": "^2.3.0"
  }
}