It should have at least 10 entries. Each entry should be two words, the first in English, the second in some other language you know. Play with your program to verify that it works. Mail me a message when it is ready for me to try. If you want to be fancier, you may.
Every term has a multi-word phrase defining it.
The pattern . You don't need a blank line in the translation file, but it won't hurt. The name of the translation file is up to you, but the convention is to use all lowercase. You might use a name ending in .data .