The other thing is that criminals are very clever. They often insulate themselves by having many different transactions in between where cigarettes are ultimately sold."

VOA: standard.2010.08.11

But in general, it's hard to come up with the really clever algorithm.

但是通常来讲，真正巧妙的算法,确实非常难设计。

麻省理工公开课 - 计算机科学及编程导论课程节选

Now, what they did was--they were clever psychologists so they set it up in a study where the people did not know sexual orientation was at issue.

他们都是聪明的心理学家,他们设计了一个实验,实验对象并不知道研究的是同性恋问题。

耶鲁公开课 - 心理学导论课程节选

Similarly, in naval battles Themistocles at Salamis comes up with a clever device.

在萨拉弥斯海战中,地米斯托克利也是靠着类似的招数才扭转乾坤

耶鲁公开课 - 古希腊历史简介课程节选