要解释睡眠和营养之间的因果关系，还有一个挑战，那就是可能有第三个因素对它们两者都有影响。

As yet a challenge to explain the cause-and-effect relationship between sleep and nutrition, there may be a third factor that impacts both of them.

youdao

如果有的话，当前对全球和国内文化关系的兴趣对教学的影响是什么？

What, if any, are the pedagogical implications of the current interest in global and domestic cultural relations?

youdao

需要进一步的研究来调查这种关系的因果本质，并调查主人的个性是如何直接影响他们的宠物的行为和健康的。

Further research is needed to investigate the causal nature of this relationship, and to look at how owners' personalities are directly influencing their pets' behaviour and wellbeing.

youdao

Now let's see where diet comes into play here and how diet affects these different diseases.

现在我们来看看饮食和它们的关系,饮食又是如何影响这些不同疾病的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Student: Yeah. So the question is are any of these factors, particularly the big three, proximity, familiarity, and similarity-- ? Do they affect the maintenance of relationships?

学生：,你的问题是,有没有一个因素，尤其在这三大因素当中，即空间接近，，熟悉度和相似性-,会影响关系的维持？

耶鲁公开课 - 心理学导论课程节选