They were suspended from ropes as they used heavy air-powered hammers to break any loose rock away from the face of the canyon walls.

VOA: special.2009.08.12

Another good thing to do when you're really stuck is walk away. Take a break. Come back and look at it with fresh eyes of your own.

当你卡住的时候另外一件有益的事,就是走开休息一会儿,再回来看代码的时候你的眼睛就清醒多了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Someone who wants to break into the house will then know when people are away.

VOA: special.2009.09.14

That's not all. A new government will also have to resolve a 19-year-old rebellion in an eastern break-away region, where Russia has troops and which wants to be annexed by Moscow.

VOA: standard.2009.08.29