英语词汇“earned run average”是什么意思，“earned run average”的读音、用法及例句翻译-烛光网

词汇	earned run average
释义	earned run averagen.Abbr. ERABaseball （名词）缩写 ERA【棒球】 A measure of a pitcher's performance obtained by dividing the total of earned runs allowed by the total of innings pitched and multiplying by nine.投手责任得分率：一种测量投手表现情况的方法，将所得的责任分除以所有回合中所投的球数再乘以九，即得投手责任得分率
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