1. Most of the photos in the exhibit were captured accidentally. 大部分展出的照片都是偶然拍摄到的。
2. Turtle suddenly lost control, he accidentally fell on the back of the rabbit. 乌龟顿时失去了控制，竟意外地落在了兔子的后背上。
3. A group of children of various ages was read stories in which people caused harm, some of those people doing so intentionally , and some accidentally. 一组含各个年龄段的小孩子学习“哪些人会造成伤害”，这些造成伤害的人中有些是蓄意的，有些是无意的。
英英解释
adv.
1. without advance planning
2. in an incidental manner
3. without intention; in an unintentional manner
