Twosmallwordscanbringasmiletosomeone’sface:thankyou.But...
问题详情：Twosmallwordscanbringasmiletosomeone’sface:thankyou.But1 doyousay thesetwowords?Perhapswhensomeoneholdsthedooropenforyou.Orwhenafrienddoesyouabigfavor.InBritain,peoplesay“thankyou”quite...