Howoldaretheappsonyo的精选

问题详情：Howoldaretheappsonyoursmartphone?Isittimeforanupdate?Herearethreeappsforyou.Trythemoutandhavefun.DuolingoLearningaforeignlanguagedoesn’talwaysmeanyouhavetositinaclassandtakeendlessexams.Anapp...