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Duolingo is the world's most popular way to learn a language. It's 100% free, fun and science-based. Practice online on duolingo.com or on the apps!

Speak is the first & only app that lets you get real conversational practice without needing a live tutor on the other end. And we build some serious AI tech to make that possible.

🔍 Day of AI Day of AI 是由麻省理工大学 MIT RAISE 推动的人工智能教育计划，旨在提升K-12学生、教师及学校管理者的AI素养，为学校提供免费的AI课程、评估工具和教师培训资源。该项目致力于通过负责任的AI使用培养下一代学生应对未来AI驱动社会的能力。

通义官网，致力于实现类人智慧的通用智能

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