Doyoufindithardtomemorizewords?Youmustnotbetheonlyone.I...
问题详情：Doyoufindithardtomemorizewords?Youmustnotbetheonlyone.Itcouldbe 61 (help)ifyousaythewordsaloud.Butthisoftenisn’tgoodinaquietclassroom.Now,researchersfromtheUniversityofWaterloo,Canada,h...