[countable] (sport体育) (inbaseball) ahitthatallowsthepersonhittingtheballtorunaroundallthebaseswithoutstopping（棒球）本垒打◆tohitahomerun打出一个本垒打➨ WORD BUILDING 词汇扩充There are nine players on a baseball team. The pitcherpitches(= throws) the ball to a batter from the other team.一支棒球队有九名队员。投手 (pitcher) 把球投给对方球队的击球手 (batter)。The batter tries to score runs(= points) by hitting the ball and running around the four bases.击球手要设法击中球并跑完四个垒位 (base) 才能得分 (run)。If the batter tries to hit the ball but misses it, this is called a strike. After three strikes the batter is out and the next batter comes to bat.如果击球手试图击球而未击中，称为“击球不中” (strike)。击球手三次击球不中就出局 (out)，换下一个击球手上场。If a batter manages to hit the ball so far that it goes out of the field, this is a home run, and the batter is allowed to touch all four bases.如果击球手击中球，球飞出场外，称为“本垒打” (home run)，击球手可以踏触所有四个垒位。