帮忙看看有什么语法错误吗?有点长,IamwrittingthelettertoinformyouthatIwanttocomplainabouttheelectronicdictionary.Ibroughtitfromyouronlinestore,justusingforthreedays.Idemandapromptsolution,givingmeanewoneatleast.Furthermore,you,beingahugeandformalcooperation,mustrestoremymoneyforyourreputation.