Conclusion: If you want to raise your own incomes or if you want to get secure jobs, you should study some European languages.
To know which languages in Europe are recommendable, please listen to and enjoy this episode.
Related contents:
1. Note 136 Recommendable education materials for learning foreign languages
2. Note 130 Which language is recommendable to broadcast on YouTube?
3. The video version of this episode: [Note 069] Which languages are recommendable to study?
