You don't need to, if you want to take advantage then you can, but you don't need to.

你不一定要这样做,除非你想充分利用该网站,不然的话,真的没必要

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, most states would essentially adopt what the NAIC says, otherwise--they're not going to figure it all-- they can't claim to beat--it would be rational to do that.

因此大部分州基本上都会采纳这些建议,不然的话,各州要自己进行全盘考虑,若要推翻保协会的建议,那将是不理智的

耶鲁公开课 - 金融市场课程节选

I was afterwards told and he ordered that I be kept abed, that I be kept quiet, that my very life depended upon it.

之后觉察到医生来了，A，doctor，was，called—,他要我躺在床上，静养，不然性命不保。

耶鲁公开课 - 1945年后的美国小说课程节选

Now I'm not-- again, this is the kind of detail I'm not expecting you to remember, but it's just an exemplar of this broader issue about how dependence on certain foods leads to nutritional deficiencies that have to get remedied somehow or else people have health problems.

现在,我不是,我并不希望你们能记住这些细节,它们不过是作为一个例子来拓宽,由于依赖某种食物而导致营养不良的问题,要采取弥补措施,不然会引起健康问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选