"Use the manuals from your TV, microwave, vacuum cleaner, and so on that have the instructions printed in English, French, and Spanish to relate the two "dead" languages to a language you understand (English). The idea is that these manuals are your Rosetta Stone."
WARNING: I have repeatedly found the translations of houseware manuals to be thoroughly broken. I often read the English part even though my native language is French because English is, if not the original language, at least well-supported. The French version has pathetic grammar and lacks many accents and has some in wrong places, with bad grammar.