In the former two situations, the exit time is assumed to be a random variable and in the last situation the exit time is assumed to be a stochastic process.

对前两种情形考虑退出时间是个随机变量，对最后一种情形考虑退出时间是个随机过程。

youdao

Scientists from around the world met in Tanzania last month to discuss the situation.

VOA: special.2009.09.21

Last year,the United States Congress ordered the I.O.M.to study the situation again.

VOA: special.2009.06.02

Last month,General Petraeus talked about the situation.

VOA: special.2010.06.26

"We set down in our communique to counties last October the situation as we saw it then, " he said.

BBC: County chiefs demand rebel ruling

Toyota, of course, found itself a similar situation last year.

FORBES: Are You Responsible for Your Company's Reputation?

How long can such a situation last in the world?

NPR: Transcript of Ahmadinejad's U.N. Speech