有时，灾难性的一秒钟可能会发生，这会永远改变一个人的生活。其他时候，一个小事件可能导致另一个事件，然后是另一个事件，最终引发了人体生活的大变化。
(Sometimes something catastrophic can occur in a split second that changes a person's life forever; other times one minor incident can lead to another and then another and another, eventually setting off just as big a change in a body's life.)