And I've got to worry about, is somebody else using ANS, answer, as a variable, in which case I've got to be really careful. Is somebody else using x as a variable? I've got to deal with a lot of those details.

而且我还要担心有没有别人,使用了ANS，answer作为变量,这样我就必须要非常小心,有没有别人用x当做变量呢？,我需要处理很多类似的细节。

麻省理工公开课 - 计算机科学及编程导论课程节选

You want to use "make sure" to declare that you want something to declare that something needs to be done.

当你声称想要某东西，或表示某事必须做到的时候，可以使用“make sure”句型。

Make sure 课堂 - SpeakingMax英语口语达人