快速入门一个行当的诀窍就是了解它的术语。这里为棒球初学者选择一批经常出现在规则、比赛或训练口语交流中的棒球中英文对照的术语，便于在学习和对外比赛交流中使用。有翻译不当的地方随时留言告诉我们。
1-2-3 inning 1-2-3局
Inning in which a pitcher gets all three hitters out in a row.
投手连续让三个打者出局（三上三下）的半局。
Ace
A team’s best starting pitcher.
一个球队最好的先发投手。
Ahead in the count球数领先
When the player you’re referring to has the count in their favor.
你关注的球员有球数的优势。
The hitter is ahead 2-1; the pitcher is ahead 1-2.
比如打者领先就是2坏球1好球; 投手领先就是1坏球2好球。
Backdoor breaking ball 后门变化球
Can refer to any pitch that breaks from outside the strike zone back into the strike zone.
指从好球区外拐进好球区的变化球。
Backstop 后档
The fenced area behind home plate.
本垒板后方用于围起来的档网。
Bag 垒包
Another term for base.
垒的另外一种说法。
Balk 投手犯规
When the pitcher makes an illegal movement or delivery. Results in base runners being awarded the next base.
投手做出非法移动或投传球时。
Bang-bang play 砰砰局面
A play on the bases that is very close-where the runner is barely safe or barely out.
在垒位上球到人到非常接近，安全还是出局很细微。
Barrel it up 棒头吃中
When a hitter hits the ball hard, in the center of the barrel of the bat.
当打者用球棒头的中部狠狠击中了球。
Batters’ box 击球箱
The chalk-lined rectangle the hitter stands in during an at-bat. 打者在他的打席站立的白色长方形。
Batting Average (average) 安打率
A primary hitting statistic-hits divided by at-bats.
一个基本的打击统计指标，安打数除以打席数。
Base hit 安打
When a hitter reaches first on a batted ball that is not misplayed by the other team and does not cause any base runners to get out.
打者凭借击出的球安全上一垒，防守方没有失误，并且没有造成其他任何跑垒员出局。
Base open 垒位开放
When first base is unoccupied. Or, when second base is unoccupied with runners on first and third. Pitchers will adjust their pitch-calling strategy when there is a base open, because walks will not force runners to move up.
当一垒无人时，或者当一三垒有人而二垒无人时。当有垒位开放时，投手会调整他们的配球策略，因为此时保送不会顶进前卫跑垒员。
Bases loaded 满垒
When a runner is on every base.
当每个垒上都有跑垒员时。
Bat around 棒次循环
When every batter in the lineup comes up to bat in a single inning, and the first batter of the inning is up at the plate for his second at-bat.
当打线的每个打者都在同一局上场打击，又轮到第一个打者上场第二次打击。
Bat flip 轻抛球棒
When a hitter tosses his bat into the air or into foul territory as he leaves the batter’s box. Bat flips are gestures of pride following a home run.
当打者离开击球箱时把球棒轻抛起来落到界外区域。轻抛球棒是打出本垒打后的庆祝动作。
Batters’ eye 打者眼
The darkened area beyond the center field wall that provides contrast with the white baseball, so the hitter can see the pitch better. Advertising and signage is not allowed in this area.
在中外场墙上方的黑色的区域，和白色的棒球形成反差，打者能更好地看到投球。广告和标志不允许出现在该区域。
正对打者的位置一般做成墨绿色或黑色背景
Battery 电池
The pitcher and catcher combine to make the battery of a team. They are known as “battery mates.”
投手和捕手组合构成球队的电池。他们被称为“电池对”。
Bleeder (or seeing-eye single) 安打弱球
A poorly hit ground ball that barely makes it through the infield。
打得很差的地滚球但眼睁睁地在内场手间穿过成为一个安打球。
Blooper 小飞安打球
A fly ball hit weakly between the infield and outfield.
很短的一个在内场手和外场手之间的高飞球形成安打。
Booted 地滚失误
When a fielder makes an error.
内场手的一个失误。
He booted that easy ground ball.
他搞砸了那个简单的地滚球
Bullpen 牛棚
Where the relief pitchers sit and get warmed up before entering a game. Also refers to a practice pitching session.
中继投手等候和在上场前热身的地方，也指一个投手训练单元。
They’re calling down to the bullpen to get someone up; he usually throws his bullpen two days before his start.
他们到牛棚里叫某人上场；他通常在开赛前两天进行投球训练。
Bump (or hill) 投手丘
Another word for pitching mound.
投手丘的另外一个说法。
Bunt 触击
When the hitter holds his bat out in front of the plate to let the pitched ball hit it, thus producing a bunt, which is an intentionally short hit, most typically used to move a base runner over one base.
当打者手持球棒在本垒板前让投球击中球棒，形成一个触击，作为有意识的一种短打，最典型的场景是用于把跑垒员推进一个垒位。
The hitter squared a round to bunt; this maybe a good bunt situation—we’ll see if the hitter squares.
打者正过身来触击；这是一个适合触击的局面—我们来看打者是否会正身。
关于触击战术，可以参考这一篇《对付牺牲触击 防守方必须头脑清晰》。
Breaking ball 变化球
A pitch that breaks, such as a curve ball, slider or slurve.
一个线路变化的投球，比如曲线球、滑球或者滑曲球。
更多球种知识，可以参考这一篇《10分钟搞懂棒球4大投球种类》。
Can of corn 玉米罐头
A fly ball to the outfield that is easy to catch.
一个打到外场很容易接到的高飞球。
Caught napping 逮住瞌睡
When a runner is picked off a base.
当一个跑者在垒上被牵制杀出局。
Checked swing 刹住挥棒
When a hitter stops his swing early, trying not to offer at the pitch. Umpire has discretion to deem it a strike or not.
当打者在挥棒的早期阶段决定不打这个投球而刹住挥棒。裁判有自主决定权判定是否算一击。
（待续）
