"There may be either a new cause for gastric cancer in that population or perhaps some difference in their Helicobactor Pylori infection that's contributing to a new risk for gastric cancer."

VOA: standard.2010.05.12

And there is a very big difference between these two simplicities, even though on the face of it, they may at times look similar.

这两种简单性之间有很大的区别，尽管乍看起来，他们有时也许是相似的。

哈佛公开课 - 幸福课课程节选

Erik Leaver of the Institute of Policy Studies says one big difference is that the strongest opposition about Afghanistan may form over the financial cost of the war rather than the human one.

VOA: standard.2009.09.09

But Ritz, who has both undergone and conducted SERE training, says there is a great degree of difference between training and actual interrogations, where harsh techniques may be combined and carried out for longer periods.

VOA: standard.2009.04.17