Pretoria,SouthAfrica–Hundredsofswimmersplayinthewateral...
问题详情：Pretoria,SouthAfrica–HundredsofswimmersplayinthewateralongaSouthAfricabeach.Suddenlyahugesharkappearsoffshoreandheadsforthebathers.Beforeitcangetclosetotheswimmers,theshark,forsomemysteriousr...