- 问题详情:BlackFridayistheFridayfollowingThanksgivingDayintheUnitedStates.Ithasbeenregardedasthebeginningoftheholidayshoppingseason.Althoughit'snotanofficialholiday,millionsofemployersgivetheiremployeesthedayoff,andmanypeopleusethatdaytogetajumpstar...
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