It was clear that there were deep differences between the northern and southern American states.

VOA: special.2009.05.07

They seem to sort of reflect deep differences in your mood and emotions and thoughts.

他们反应出深层次的不同,在你的情绪，情感及思想中。

耶鲁公开课 - 心理学导论课程节选

And there are some subtle and very interesting differences across countries and across people, but there's also deep universals.

有一些细微，有趣的不同,不同的国家和民族，但也有极大的全球统一性。

耶鲁公开课 - 心理学导论课程节选

Some would maintain that there really are deep sex differences.

有些人会坚持性别差异是根深蒂固的。

耶鲁公开课 - 心理学导论课程节选