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
from BBC News - World https://ift.tt/2GqF6Wp
As Biden prepares to extract troops, we ask three Americans with personal connections what they think. from BBC News - World https://ift.tt/2Qk74vu
Comments
Post a Comment