キーストーンコンビネーションじ字FuriganaMeanings1nounkeystone combinationA loanword from English, used in contexts such as baseball or other sports to refer to a specific combination of players, often the second baseman and shortstop.彼かれらは強きょう力りょくなキーストーンコンビネーションで知しられている。They are known for their strong keystone combination.
