>>876
https://crazy-for-baseball.com/column/origin-of-the-baseball-battery/#:~:text=%E5%A4%A7%E7%A0%B2%E3%81%AE%E7%8E%89%E3%81%8C%E3%80%8C%E3%83%9C%E3%83%BC%E3%83%AB,%E3%81%AB%E3%81%AA%E3%81%A3%E3%81%9F%E3%81%9D%E3%81%86%E3%81%A7%E3%81%99%E3%80%82