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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!

ShowMeAI知识社区

Learn more about MinnaLearn's and the University of Helsinki's AI course - no programming or complicated math required.

TalkMe - Learn & speak languages with your personal AI tutors

Grow wiser and retain books better: Readwise sends you a daily email resurfacing your best highlights from Kindle, Instapaper, iBooks, and more.

阿里云开发者社区覆盖云计算、人工智能、云原生、大数据、数据库、安全、开发、运维等技术领域，为开发者提供分享、交流、学习、认证、实践、活动等一站式服务能力。