防御率 meaning in Chinese

earned run average
era

Wang ' s 3 . 63 era was eighth in the league
阿民3 . 63的防御率排名联盟第八。
He struck out two and saw his era balloon from 3 . 36 to 4 . 24
他投出两次三振，防御率从原本的3 . 36升高到4 . 24 。
Igawa went 14 - 9 with a 2 . 97 era for the hanshin tigers last season
井川庆去年在阪神老虎队的战绩为14胜9败，防御率2 . 97 。
Wang was 1 - 1 with a 6 . 61 era in his three previous starts
小民在他先前三场的先发中，曾出现单局高达6 . 61的防御率（这样翻对吗？
At this point , your best defense rates staying current on the latest threats and how to defend against them
此时,你的最佳防御率保持目前的最新威胁,如何防范他们

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