Last Friday night,an oil pipeline broke under the Yellowstone River in the western state of Montana.

VOA: special.2011.07.08

Who here has been making it since the beginning of the semester on under six hours a night?

谁从本学期开学到现在,每晚睡不到六小时的？

耶鲁公开课 - 心理学导论课程节选