Practice/wheeparam/system/language/korean/number_lang.php

<?php
/**
 * System messages translation for CodeIgniter(tm)
 *
 * @author CodeIgniter community
 * @author HyeongJoo Kwon
 * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
 * @license http://opensource.org/licenses/MIT MIT License
 * @link https://codeigniter.com
 */
defined('BASEPATH') OR exit('No direct script access allowed');

$lang['terabyte_abbr'] = 'TB';
$lang['gigabyte_abbr'] = 'GB';
$lang['megabyte_abbr'] = 'MB';
$lang['kilobyte_abbr'] = 'KB';
$lang['bytes'] = 'Bytes';