And just in case the assumptions are not true, we're just going to stop dead in our tracks.

验证下假设条件，万一传递的参数。

麻省理工公开课 - 计算机科学及编程导论课程节选

We handed out again the game with the numbers, but just in case, let me just read out the game you played.

再来介绍一下这个数字游戏,但是以防万一,我来介绍下游戏规则

耶鲁公开课 - 博弈论课程节选