Is duolingo enough to learn a language?

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Tags

1. #simply
2. #insufficient
3. #comfortably
4. #language
5. #alone
6. #fluent
7. #fluency
8. #studies
9. #supplement
10. #something
11. #communicate
12. #define
13. #learning
14. #being
15. #become
16. #needs
17. #duolingo
18. #definitely