That's partly what you have to develop when you get interested in a field: some sense of curiosity about all the details.

当你对某个领域非常感兴趣的时候,你可以培养一种习惯,就是对细节的好奇心

耶鲁公开课 - 金融市场课程节选

It's when you are not interested in something.

当你对某事不感兴趣的时候，

Don't 课堂 - SpeakingMax英语口语达人

There's the weird diets but hard to classify: Detox Diet, The Rave Diet, so if you're into raves you can go do that, and The Negative Calorie Diet, so these -the Negative Calorie Diet are ones that- where you eat food that have negative calories, so you consume it but it burns off more calories than it actually has.

这些是难以归类的减肥法,排毒法,锐舞减肥法,如果你对锐舞感兴趣,就可以照着做,还有负热量减肥法,负热量减肥法是指,吃具有负热量效应的食物,当你吃它的时候,消耗掉的热量比食物本身所含热量还多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So you will say "Don't" when you see something that you're not interested in.

当你见到一些你不感兴趣的事时，你就可以说“Don't”。

Don't 课堂 - SpeakingMax英语口语达人