Hard to imagine. Well, it's easy if you try, Dick.

VOA: standard.other

PROFESSOR BAWENDI: The only But it's hard to imagine an irreversible compression the way we can just imagine an irreversible expansion.

,但是我们很难,像描述不可逆膨胀一样,来描述不可逆压缩。

麻省理工公开课 - 热力学与动力学课程节选

And it's hard to imagine a simpler program than this. So we very quickly realize that exhaustive testing is just never feasible for an interesting program.

更简单的程序了,因此我们很快的意识到,对一个程序来说详尽的,测试是永远不可行的。

麻省理工公开课 - 计算机科学及编程导论课程节选

and democratic country. And then in the sense it's hard to imagine that there will not be a reaction to the inequitable growth process.

不管这个国家是否是民主制,如果放任不平等性经济增长,后果将难以想像。

普林斯顿公开课 - 国际座谈会课程节选