形容词意外的，偶然（发生）的; 附属的
名词偶然; 次要方面
形容词
1. We must never let any accidental success go to our heads.
我们永远也不能让一时的成绩冲昏头脑。
2. Our meeting was quite accidental.
我们的相遇是很偶然的。
3. Breaking the vase was purely accidental; she did not mean to do it.
打碎花瓶纯粹是偶然失手；她无意弄坏它。
副词
1. This morning, however, a fireman accidentally discovered the cause.
然而，今天早晨，一个消防队员偶然发现了起火的原因。