(Sound) A television ad airing all over East Asia is aimed at luring tourists to South Korea.

VOA: standard.2009.11.05

This was very big in an ad campaign at least last year, I'm not sure if it still is, with the little butterfly.

它的广告宣传做得很大，至少在去年是这样的，我不确定它现在还是不是，它这里有一个小蝴蝶。

麻省理工公开课 - 化学原理课程节选

How do you deal with that trade-off where you absolutely need an ad sales force but at the same time, if one person at a time, you just can't say let's go out and hire five good engineers or five good ad sales people and not have them be great?

如何做出选择，如何取舍,当你急需一批销售人员，但如果只碰见一个合适的人选，你不只能因此去找,5个差不多的工程师,或者5个差不多的广告销售？

斯坦福公开课 - 扎克伯格谈Facebook创业过程课程节选

In the poem that we looked at last time that was the poem Ad Patrem that Milton had addressed to his father Milton was attempting, as you remember, to justify to his father his own interest in becoming a poet.

上节课我们读的诗《Ad，Patrem》,是弥尔顿写给他父亲的,正如你们所记得的，弥尔顿正尝试着向父亲证明自己成为诗人的潜力。

耶鲁公开课 - 弥尔顿课程节选