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The man teaching 300 million people a new language

Luis von Ahn is the founder and boss of Duolingo, the world's most popular language learning app.

from BBC News - World https://ift.tt/2GqF6Wp
The man teaching 300 million people a new language The man teaching 300 million people a new language Reviewed by swadu on January 26, 2020 Rating: 5

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