arenaKK [ɚˋinə] /ɚˈinə/名詞1體育館、競技場、巨蛋The new arena can seat twenty thousand fans for a concert.這座新體育館辦演唱會可容納兩萬名觀眾。2領域、舞台、圈She entered the political arena after years as a lawyer.她當了多年律師後踏入政治舞台。3鬥獸場、角鬥場古羅馬Gladiators fought wild animals in the arena for public entertainment.角鬥士在鬥獸場與猛獸搏鬥,供民眾娛樂。