Some of his silkscreen prints are so detailed it is hard to believe they are not paintings.

VOA: special.2009.09.02

Saying that one of them is Napoleon and the other one isn't seems very hard to believe.

说其中一个是拿破仑,另一个不是拿破仑，似乎都难以令人信服。

耶鲁公开课 - 死亡课程节选

They are so detailed it is hard to believe the images are not painted.

VOA: special.2010.04.14

The racism represented by this object is hard to believe today.

VOA: special.2010.03.03

It is hard to believe that many of us eat this much salt during one meal or even in one day.

VOA: standard.2010.04.22

With so much concern over the swine flu, it is hard to believe anyone would want to get it on purpose.

VOA: standard.2009.12.18

"Even eight years later, it is hard to believe how people disrespect this day,".

VOA: standard.2009.09.11

"It is kind of hard to believe sometimes when I look at his work to realize that one sheet of paper goes into each of the animals with all of the complexities."

VOA: standard.2010.03.17