「era」の発音の仕方
「era」の独自の発音を追加します
「era」の意味と定義
- Noun
- Noun
a major division of geological time; an era is usually divided into two or more periods
同義語:
- Noun
(baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched
同義語: