S•TSocial • TechCrunch·last yearshared a link post in group #TechCrunch Socialtechcrunch.comDuolingo sees 216% spike in U.S. users learning Chinese amid TikTok ban and move to RedNote | TechCrunchTikTok U.S. users have been learning Chinese on Duolingo in increasing numbers amid their adoption of a Chinese social app called RedNote ahead of the