Lawyers sometimes use experts to help them choose jurors.

VOA: special.2009.08.31

PROFESSOR: Great question. So the question is, how do you choose an algorithm, why would I choose to use a pseudo-polynomial algorithm when I don't know how big the solution is likely to be, I think that's one way to think about it.

教授：问得好，所以问题是，你怎样选择算法，为什么当我,不知道解决方案会有多大的时候,我要选伪多项式算法呢，我想这是一种思考问题的方式。

麻省理工公开课 - 计算机科学及编程导论课程节选

You might choose to use a word for "Dog" as "Woof woof" because it sounds like a dog but you can't use a word for "Country" that sounds like a country.

你可以用"汪汪"这个词来表示"狗",因为它听起来像只狗,但你却无法使用一个听起来像国家的词,来表示"国家"

耶鲁公开课 - 心理学导论课程节选

And without a vaccine, Dr.Fauci says the best methods of prevention are these: encourage people to limit the numbers of sexual partners encourage men to use condoms train more doctors to perform adult male circumcision empower women to choose their sex partners and protect themselves from getting the virus that causes AIDS All of these goals still remain major challenges.

VOA: standard.2010.07.17