twelfths發音名詞1十二分之一twelfth 的複數Three twelfths of the cake equals one quarter of it.蛋糕的十二分之三等於四分之一。2第十二、第十二名少用The two teams finished twelfths in their respective leagues.這兩支隊伍在各自的聯盟中都排第十二名。