Magic words in falback language
Fragment of a discussion from User talk:Nemo bis/LiquidThreads
See FAQ#Special:AdvancedTranslate. The most efficient way is that you submit a patch yourself, in the end it takes less time than explaining things to others on Phabricator. See mw:Gerrit/Tutorial or (even easier, in theory, especially on Windows) mw:Gerrit patch uploader.