详细解释:a. 意外的, 偶然的, 非主要的, 附属的
n. 临时记号, 次要方面
【法】 偶然事故, 附属物
词型变化：
副词:accidentally英语解释：
名词 accidental:
a musical notation that makes a note sharp or flat or natural although that is not part of the key signature形容词 accidental:
associated by chance and not an integral part同义词：adventitious