How We Define "Fluent" for Language Learning - Duolingo Blog
A Duolingo expert answers questions about how to become fluent in a new language, and how we define fluency.| Duolingo Blog
A Duolingo expert answers questions about how to become fluent in a new language, and how we define fluency.| Duolingo Blog
Which languages count as Romance languages? Learn how Romance languages evolved over time.| Duolingo Blog
