Republicans and Democrats expressed identical concerns that by engaging in negotiations, Iran may be playing for time in an effort to move ahead with weapons-related enrichment.

VOA: standard.2009.10.28

Well a number of you have spent this past week playing with this particular tool which is a project the course has been working on for some time in an effort to make it easier and more social to actually shop for courses.

在过去的一周里,已经有一部分人开始使用这种特殊的工具了,这门课程一直在致力于这一工具的开发,目的是为了让课程变的更简单,选课更人性化。

哈佛公开课 - 计算机科学课程节选

So, think about the birches as a tool, another tool, but this time a tool for play, a tool for playing alone.

把桦树看成一种工具，另一种工具，但是这次是玩的工具，只是玩的工具。

耶鲁公开课 - 现代诗歌课程节选

At that time,they were criticized for not playing "true jazz."

VOA: special.2009.03.01

Alice is fifteen years old at the time, not an entirely unreasonable age for an actress or an amateur actress playing the maidenly but strong-headed Lady of Milton's mask.

当时爱丽丝，15岁，她的年龄完全不适合演弥尔顿所描绘的,沉稳而意志坚强的小姐。

耶鲁公开课 - 弥尔顿课程节选

Klug was on the transplant waiting list for six years, and during that time he was out care-free, riding his snowboard, playing and training hard.

VOA: standard.2010.02.26

Let's say oftentimes orchestral musicians, they're sitting there and they're not playing so they have to be able to count for a long period of time.

时常,管弦乐团的乐手们坐在那里,却不需要演奏,因此他们不得不打很长一段时间的拍子

耶鲁公开课 - 聆听音乐课程节选

"I am from Turkey and right now I am attending Ferris State University and I decided to come to the United States mainly because I have been playing competitive Tennis for a very long time and my Tennis coaches mentioned to me that in the United States I would be able to get a scholarship and also get an education so that is the main reason I came to the United States so I can play really competitive Tennis and get my education."

VOA: standard.2009.12.14