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Tags
apps
duolingo
language learning
tc
2
×
chat
chatterbots
chinese
crowdsourcing
education
instant messaging
interactive fiction
internet properties established in 2011
mobile
natural language parsing
social networking language education websites
What
duolingo
help
language
learn
2
×
learning
2
×
today
use
2
×
anybody
apps
aren’t
asian
chatbots
chinese
comes
context
conversation
course
duolingo’s
earlier
extremely
introduced
japanese
korean
languages
launched
learned
mandarin
marked
mobile
modern
new
offered
online
popular
precise
read
service
services
standard
starting
Language
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tc
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