柯林斯词典a cappella /ɑː kəˈpɛlə/ 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剑桥词典sung by a group of people without any musical instruments (郃唱)無樂器伴奏的;團躰清唱的 返回 a cappella