Duolingo 是什么？
Duolingo is the most popular language-learning app, with bite-size lessons in dozens of languages, plus math, music and chess courses. AI generates exercises and powers features like video calls with a character to practise speaking.
The core lessons are free; premium tiers add the AI conversation and explanation features.
主要功能
- Gamified lessons
- AI video call practice
- Explanations of mistakes
- Many languages
- Free core course
