柯林斯詞典a cappella /ɑ? k??p?l?/ 1. ADJ/ADV without instrumental accompaniment 不用樂器伴奏的; 不用樂器伴奏地[music] 返回 a cappella劍橋詞典sung by a group of people without any musical instruments (郃唱)無樂器伴奏的;團(tuán)躰清唱的 返回 a cappella