Translation:The more I learn, the more I love this language.
ju and des do have a direct English translation -- they both translate to "the".
Unfortunately, to two different senses of the word "the", neither of which is the definite article... the word "the" has too many uses in English.
And you can't change their order -- ju is used in the clause that sets up the "cause", des in the clause that explains the "effect". Usually, they come in that order -- you would say "The less I sleep, the more tired I am" more often than "I am more tired the less I sleep".
If you look up https://www.dictionary.com/browse/the , it's "the²", meaning 2 -- ju is the one "with relative force" and des the one "with demonstrative force" according to their explanation.