Automatic translation of keywords (Google Translate)

We have a set (530) of keywords which we need to have translated (automatically, through Google Translate) into the most spoken languages of all countries in the world. The job consists of two parts:
1) Go through the list of countries (188) we'll provide and find which are the most spoken languages there (for some of them it may be 2 or more languages)
2) take the list of keywords and translate it into these languages using Google Translate or similar tool

Please, see the list of keywords and the list of countries we have uploaded for better idea.