But Lee Smith's new book concludes that diminishing the American presence in the Middle East at this moment could create dangerous new instabilities that could worsen,not improve, the prospects for peace in the region.

VOA: standard.2010.03.18

That concludes this lecture and I won't be here on Monday, but we'll have a lecture in this classroom on Monday

以上是今天课的全部内容,下周一我不会来这,但你们下周一要来这间教室考试

耶鲁公开课 - 金融市场课程节选