Iowa National Guard veteran Kyle Hoefling took off from work to join a rally the night before Mr.Obama's visit.

VOA: standard.2010.03.25

Whoever does work on it, that person is cut off from among his kin.

不管谁在这一天工作，这个人要和他的家族断绝关系。

耶鲁公开课 - 旧约导论课程节选

Enzymes work best, enzymes are proteins that catalyze chemical reactions and our bodies operate by elaborate networks of chemical reactions, When we're off from that temperature then they don't work properly.

举酶这个例子再好不过,酶是一种具有催化作用的蛋白质,人体依靠精密复杂的化学反应网络来运转,如果我们体温与之相差较大,这些酶就不能正常工作

耶鲁公开课 - 生物医学工程探索课程节选