This stretch of coastline southwest of Pago Pago was one of the hardest hit by the tsunami, when the usually peaceful ocean sent walls of water crashing into beachside homes.

VOA: standard.2009.10.07

I think changing your mind is one of the hardest things.

我认为改变自己的思想是最困难的事情之一。

普林斯顿公开课 - 人性课程节选

A long-standing drought, along with recent devastating bushfires and widespread floods have given some scientists more reason to think that the vast continent is likely to be one of the countries hardest hit by a shifting climate.

VOA: standard.2009.05.03