Theword“day”hastwomeanings.Whenwetalkaboutthenumberof...
问题详情:Theword“day”hastwomeanings.Whenwetalkaboutthenumberofdaysinayear, weareusing“day”tomean24hours.Butwhenwetalkaboutdayandnight, weareusing“day”tomeanthetimebetweensunriseandsunset.Sincet...