adj.意外的，偶然（发生）的；附属的；n.偶然；次要方面； 变形： 复数：accidentals 双语释义：adj.(形容词)偶然的; 意外的 happening by chance; not planned英英释义： accidental[ ,æksi'dentəl ]n.a musical notation that makes a note sharp or flat or natural although that is not part of the key signatureadj.asso