It shows bloody images of fisherman cutting the fins off dead sharks then throwing them back in the water.

VOA: special.2009.04.03

Yeah. Suppose I choose it right down there I guess 0. Well, the tangent there will not even have an x intercept. So I'm really going to be dead in the water.

好，如果我选猜想数为0，好吧,这个点的切线甚至和x轴都没交点,所以在这儿这一原则,真的不起作用了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Half our coral reefs are dead or dying. We've lost 90 percent of deep blue water,big game fish: the halibut,the tuna and the marlin that we all loved to eat.

VOA: standard.2010.08.04

Israeli officials say one way they are trying to ease water shortages in the West Bank is by pushing a project along with Jordan to channel water from the Red Sea to the Dead Sea.

VOA: standard.2009.08.01