ImagineclearingleavesonChristmas,orsweeponMemorialDay...
問題詳情: ImagineclearingleavesonChristmas,orsweeponMemorialDay.WhataboutgoingforaswimonThanksgiving?WithoutLeapDay(閏日),whichtakesplaceeveryfouryears,itcouldhappen. Ourcalendar(日曆)isnormally3...