Child rights campaigners have hailed the act, but they also point out that many challenges lie ahead in turning the legal right into a reality.

VOA: standard.2010.04.01

So, Barth is taking a risk that this little craft project emphasizes and that the stories in the book act out.

所以，这个小小的手工作品强调了，书中的故事,展示了巴斯冒的风险。

耶鲁公开课 - 1945年后的美国小说课程节选

This was an act of compulsion, and the poet had to be forced to press this lyric out of himself.

这是一个强迫性的行为,诗人被迫绞尽脑汁写出这首诗来。

耶鲁公开课 - 弥尔顿课程节选

And last June,says Sittenfeld, the House passed the American Clean Energy and Security Act, the first bill out of either chamber of Congress to directly take on the challenge of global warming.

VOA: standard.2010.02.25

Act for them, to them. Don't act as if they are just some bunch of Philistines out there who can't appreciate your art.

为他们表演，想他们表演，不要把它们当做俗气的人,所以不能欣赏你们的艺术。

耶鲁公开课 - 1945年后的美国小说课程节选

"When he selected his models, he had them audition to make sure they could do the facial expressions he wanted, that they could act out the body language he wanted for a particular picture."

VOA: standard.2010.08.09

The physicist has to constantly find out what forces act on bodies.

物理学家必须,不断地寻找都有哪些力作用在物体上

耶鲁公开课 - 基础物理课程节选

He says finding that out will be crucial. "Whether this was an act of terrorism conducted by al-Qaida central or that of a lone wolf acting independently, we will have to wait and see for the investigation and what comes out of that, but we do know that al-Qaida and their affiliates have a crazed obsession in targeting the aviation industry,"

VOA: standard.2009.12.27