- 问题详情:Peopleoftenaskwhichisthemostdifficultlanguagetolearn,anditisnoteasytoanswerbecausetherearemanyfactorstotakeintoconsideration.Firstly,inafirstlanguagethedifferencesareunimportantaspeoplelearntheirmothertonguenaturally,sothequestionofhowhardala...
- 5179