Bat ting average: a measure of a batter's performance obtained by dividing the total of base hits by the number of times at bat.

击球率，打击率：击球员击球成绩的比率，用击球所得的总分数除以击中球的次数。

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McGwire's banner year came during one of the biggest power periods in Major League history, when balls were flying out of the park at a rate of once every 34 times at bat.

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Rodriguez has averaged 31 home runs for every 450 times at-bat during his career.

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He's got 500 runs and it's a terrific effort from him and perhaps we just haven't supported him well enough at times with the bat.

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