1.意外的；偶然（发生）的 An accidental event happens by chance or as the result of an accident, and is not deliberately intended.
accidentally A policeman accidentally killed his two best friends with a single bullet... 一名警察不慎一枪打死了他的两个挚友。 A special locking system means the door cannot be opened accidentally. 特殊的锁定系统使门不会被意外打开。
英英释义
1.a musical notation that makes a note sharp or flat or natural although that is not part of the key signature
