3、thefirst or secondlanguage.MostbusinesslettersarewritteninEnglish.Itishelpfulforyoutoworkinthefuture.Ifyoudon’tknowEnglish,youwillfallbehindothersinfuture.HowcanyoulearnEnglishwell?First,youshouldpersevere.It’struethatEnglishissometimesreallyverydifficultforus.Butifyouhaveagoodmethodoflearning,