Yet researchers from Stanford University say new treatments are often no better than existing ones, but are almost always more costly.

VOA: special.2009.08.14

That's why your operating systems and your personal computers often crash for no apparent reason. Just because two things happen to, once in a while, occur at the same time.

这就是为什么你的电脑或者操作系统,经常会毫无预兆的崩溃了,这是因为两件事情正好同时发生了，通常还有人工输入。

麻省理工公开课 - 计算机科学及编程导论课程节选

it becomes especially important 4 kids who're outsiders kids who are alienated within the school community, because those kids often feel like there's no safe haven for them in the school.

对于在学校里是局外人身份的孩子来说很重要,他们被学校集体所遗弃，因为他们常常觉得,在学校里面他们找不到避难所。

麻省理工公开课 - 媒体、教育、市场课程节选

Say NO as often as possible and hold others in high esteem for doing so.

FORBES: How to Eliminate Random Acts of Senseless Productivity

They say no and often regret it for the rest of their lives.

ECONOMIST: On the European Union, Stephen Harper, religion, health care, fair-value accounting, organ donations, Cuban-Americans, Russia, the state | The

He said No 10 often learned from the media about things they did not know government was doing - and often did not even agree with.

BBC: Steve Hilton 'says bureaucracy masters the politicians'