They might be,for example,in an accident, and come close to being killed,but walk away without a scratch.

比如说在事故中幸存，差点送命，但结果毫发无伤。

耶鲁公开课 - 死亡课程节选

to be killed in a plane accident this weekend and there was a guest lecturer for you on Tuesday there'll be somebody alive lecturing to you.

我周末死于空难,而下星期二又有客座教授的话,就会有人活着给你们上课。

耶鲁公开课 - 死亡课程节选