Sign languages vary from country to country,and many are not well known internationally.

VOA: standard.2009.09.10

You were the 22 WHCS in history, According to Wikipedia, and I hope they're right, WHCS's responsibilities vary greatly from administration to administration.

你是第22位白宫办公室主任，根据维基百科，我希望数据正确吧，白宫办公厅主任的任务,每届都有所不同。

普林斯顿公开课 - 国际座谈会课程节选

But these are important issues and these vary a lot from culture to culture and a good theory of psychology has to explain how these differences arise.

这些重要问题,在每个文化中都不一样,一个好的心理学理论必须能解释,这些差异是怎么产生的。

耶鲁公开课 - 心理学导论课程节选