hen they put the ball in play。 Base lines run from home plate to first base and from home plate to third base。 Extensions of these lines； called foul lines； run along the outer edges of the outfield。 These lines divide foul and fair territory。 Base lines also extend from first to second to third base； marking the path of a runner。 The region of the outfield behind first base is called right field； the region behind second base is called center field； and the region behind third base is called left field。 A fence runs along the farthest limits of the outfield。 Two covered shelters called dugouts are located in foul territory along each base line。 Players occupy the dugouts when they are not on the field。 The baseball field is also designed with a number of markings that indicate the use of certain regions。 Boxes outlined in chalk on each side of home plate indicate where a batter may stand。 Chalk boxes in foul territory near first and third base define the position of team coaches。 Similar regions limit where pitchers may warm up during the game and where players may prepare before batting。
棒球比赛在占地0。8公顷的水平场地上进行。界内地区分内场和外场，这两个场地组成了界内地区，其余的地方为界外区。内场有一块正方形的地区叫“钻石”。内场的一角有一块五角形的橡胶，叫本垒板。击球员可随他们的喜好，在本垒的任一边击球。内场的其它三个角，依逆时针方向分别为一垒、二垒和三垒。每个垒位都用白色帆布标出。内场中心的投手板在本垒和二垒之间，略微高出场地表面。投手板上钉有橡胶，距本垒18米。投手在投球时，一脚应踏在投手板上。从本垒画到一垒和三垒的线为垒线。垒线延长出去的部分，叫做界外线，界外线一直延伸到外场。这些线划分出界内区和界外区。从一垒画到二垒、三垒的垒线，为跑垒员路线。一垒后面的外场区域称为右外场，二垒后面的外场区域称为中外场；三垒后面的外场区域称左外场。在场地周围设有围网。界外区垒线两端有遮棚的地方为场内运动员的休息区。棒球场还设有一些有特殊用途的区域。本垒两侧画白线的区域为击球员区。界外区一垒和三垒附近，为教练员区。此外，还有投手准备区和击球员准备区。
Baseball Team
棒球队的构成
A baseball team fields nine players。 On the field； each player is responsible for a particular position。 The pitcher puts the ball into play by throwing it toward home plate。 Each throw is called a pitch。 By holding the ball in special ways and adjusting its spin； pitchers can throw a variety of pitches。 They use these techniques； along with changing the speed of their throw； to make it more difficult for batters to hit the ball。 The catcher receives the ball and returns it to the pitcher unless the batter hits the ball。 Catchers also defend home plate when a runner tries to score。 The first baseman； second baseman； and third baseman are each stationed at or near a base。 The shortstop stands between second and third base。 These players are responsible for fielding； or handling； the ball when it is hit to the infield and for putting out runners as they attempt to advance around the diamond。 Three outfielders are stationed individually in right field； center field； and left field。 They are responsible for fielding balls hit to the outfield。
棒球比赛的场上有9名队员，每个队员负责一个特定的位置。投手把球投向本垒标志比赛开始，这一动作叫做投球。投手可通过不同的握球方法和不同的旋转，投出变幻多端的球。除了这些技巧，投手还可投出变速球，来增加击球员的击球难度。如果击球员没有击到球，捕手接到球再传给投手。捕手还要阻止跑垒员进垒、偷垒得分。一垒手、二垒手和三垒手必须在垒垫附近等球。游击手位于二垒和三垒之间。他们的任务是在内场传球防守并牵制跑垒员。位于右外场、中外场和左外场的三个外场手负责外场的防守。
More about Baseball
Baseball Field棒球场
在美国俚语也叫Orchard，而Ballpark指的是有看台的棒球场。棒球场分为内场infield和外场outfield两个部分。
Outfield外场：
All area in fair territory beyond the infield and bounded by fences。 There is no strict dividing mark between the infield and the outfield。 The players who cover the three outfield positions： left field； center field and right field； are called outfielders。
Infield内场：
The territory including the four bases and that area within it。 Also called the diamond because the infield is shaped like a diamond。 The distance from home to second base is longer than from home to first； home to third； or first to third。 The infield is also the all…inclusive term for the four infielders： the first baseman； second baseman； third baseman and shorstop。
Foul Lines边线：
The two straight lines； extending from home plate past the outside edges of first and third bases to the outfield fence； which define fair territory。
Home Plate本垒板：
The five…sided slab of whitened rubber； 17 inches wide； which the batter stands beside to hit the pitch。
Base垒：
The bases are located on the infield diamond。 First； second and third base are marked by white canvas bags； 15 inches square； not less than 3 or more than 5 inches thick； filled with soft material； and securely attached to the ground。 They differ from home base； which is five sided slab of whitened rubber。 It is 17 inches square with two of the corners removed so that one edge is 17 inches long； two are 8 1/2 inches； and two are 12 inches。 It is set in the ground so that the 17…inch edge faces the pitcher's plate。
All bases； including home base； are in fair territory； and are 90 feet apart in the counterclockwise order in which they are to be run。
home base本垒，first base一垒，second base二垒，third base三垒
Baseline垒线：
The direct line between each base； along which the baserunner must generally run。
Pitching Mound投手区土墩：
The pitcher's mound is located near the middle of the diamond with its pitching rubber。 This is where the defense teams' pitcher positions himself to deliver the ball （pitch） and try to get out the opposing batter。
Pitcher's Rubber投手板：
A rectangular slab of white rubber 24 inches long and 6 inches wide set in the ground on the pitcher's mound。 The pitcher must have his foot on a part of the rubber when he starts his delivery。
Catcher's Box接手区：
Area within which the catcher shall stand until the pitcher delivers the ball。
Batter's Box击球区：
A rectangular area beside home plate where a batter stands to hit the pitch。 It is a six feet long and four feet wide rectangle； and the batter must keep both feet in the box at all times when he is hitting。
Waiting Box准备击球区：
They are two circles； one for each team located half way from the batting box and the dugout； where the hitter who is next in the batting order gets ready for his turn at bat。
Coaching Box 跑垒指导员区：
They are the two marked areas of the field reserved for the coaches who during the offensive phase direct the offensive strategies to the hitter and the runner。
Bullpen候补队员区：
Area next to the playing field； usually alongside the foul lines； where relief pitchers and other substitutes warm up。
Dugout or Bench 球员席位：
Seating facilities reserved for players； substitutes and other team members in uniform when they are not actively engaged on the playing field。
Manager主教练：
Person appointed by the club to be responsible for the team's actions on the field； and to represent the team in communications with the umpire and the opposing team。 A player may be appointed manager。
Coach教练员：
Team member in uniform appointed by the manager to perform such duties as the manager may designate； such as but not limited to acting as base coach。
Home Team主队或后攻队：
Team on whose grounds the game is played； or if the game is played on neutral grounds； the home team shall be designated by mutual agreement。
1B = First Base
2B = Second Base
3B = Third Base
C = Catcher
DH = Designated Hitter
OF = Outfielder
P = Pitcher
SS = Shortstop
Defense （Or Defensive） 守队或守队队员：
Team； or any player of the team； in the field。
Fielder守场员：
Any defensive player。
Pitcher （or “hurler”）投手：
Fielder designated to deliver the pitch to the batter。 The pitcher is the player who starts the defensive action by pitching with the objective to retire the opposing batter。 The pitcher positions himself on the mound； near the center of the diamond and delivers the ball keeping one foot in contact with the pitcher's plate until the ball has been released。 The target of his pitch shall be the strike zone。 The area which upper limit is a horizontal line at the midpoint between the top of the shoulders and the top of the uniform pants and the lower level is a horizontal line at the top of the kneecap。
Catcher接手：
Plays in a crouched position directly behind home plate and catches the baseball thrown by the pitcher。 Along with the pitcher； he decides which pitches should be thrown to each batter。
Battery投接搭档：
Pitcher and catcher。
Infielder内场手：
Fielder who occupies a position in the infield。
First Baseman一垒手：
Positione