Why is learning German so important?
Living in Germany, you are constantly surrounded by German language, but you may not even be aware of how much cultural insights you are missing in your exchange experience if you do not have at least a basic understanding of the language. Although you may have picked up a few German phrases here and there, you should still consider taking a German class to allow you to communicate efficiently and effectively with your German-speaking colleagues, supervisors, and in other everyday situations.
You want a job in Germany's industry? One more reason! Germany is a leading country in scientific research, so speaking German will give your CV that extra touch and make you more desirable to future employers.