激发男人们性欲的身体不一定要完美。

The body that turns men on doesn't have to be perfect.

《柯林斯英汉双解大词典》

该设备不一定要在纯净水中使用。

The equipment doesn't necessarily operate in pure water.

youdao

关联不一定要符合逻辑。

Associations do not have to be logical.

youdao

Now,notice that does not necessarily mean it's canonical because scripture in some religions refers to a bunch of stuff.

要记住它不一定是正典,因为圣典在某些宗教里涉及很多东西。

耶鲁公开课 - 新约课程节选

I think at Yale, you know, you might not have the highest test scores or the highest grades,

我觉得在耶鲁，你不一定要有最高的考试分数或者最高的成绩，

成绩不是全部 - SpeakingMax英语口语达人

Always provides you with access to the math library because that's useful, too, so you don't always have to remember that.

总是能够让你能够使用数学程序库,那也是有用的，所以你不一定要把它记住。

哈佛公开课 - 计算机科学课程节选