Drupal.org's translation server is located at http://localize.drupal.org offering numerous teams the possibility of easy translation contributions.There is a detailed task writeup telling how to use the localize server to translate Drupal: https://www.drupal.org/contributor-tasks/translateTo complete this task, you need to submit at least 10 translations from English to your native language. If your native language is English, you can attempt his task if you're fluent in some other language. But DO NOT simply copy text from Google Translate as that's not accurate.

Deliverables - Links to the translations you contributed.

Resources - https://www.drupal.org/contributor-tasks/translatehttp://localize.drupal.org