Baseballisasportplayedbetweentwoteamsusuallyofnineplayerseach.Itisabat-and-ballgameinwhichapitcherthrows(pitches)ahard,fist-sized,leather-coveredballtowardabatterontheopposingteam.Thebatterattemptstohitthebaseballwithataperedcylindricalbat,madeofwood(asrequiredinprofessionalbaseball)oravarietyofothermaterials(asallowedinmanynonprofessionalgames).Ateamscoresrunsonlywhenbatting,byadvancingitsplayers--primarilyviahits,walks,andtheoppositionteam'sfieldingerrors--counterclockwisepastaseriesofthreemarkerscalledbasesandtouchinghomeplatearrangedatthecornersofaninety-footsquare,or"diamond."Thegame,playedwithouttimerestriction,isstructuredaroundninesegmentscalledinnings.Ineachinning,bothteamsaregiventheopportunitytobatandscoreruns;ateam'shalf-inningendswhenthreeoutsarerecordedagainstthatteam.
就不一一复制了.都在下面网址里面.
欢迎你来百度棒球吧~
