In the worst-case scenario more than ten thousand people might be affected.

在最坏的情况下，有一万多人可能会受到影响。

《牛津词典》

The worst-case scenario is an aircraft will crash if a bird destroys an engine.

如果小鸟毁坏了一部发动机，最坏的情形是飞机坠毁。

《柯林斯英汉双解大词典》

Not all casualties can necessarily be prevented—but by coordinating across local, state, and even national borders, officials hope that the worst-case scenario can be averted.

不是所有的伤亡都一定可以预防——但是通过地方、州、甚至和国家边境的协调，官员们希望可以避免最坏的情况。

youdao

In the worst-case scenario it could take six months or longer,"

VOA: standard.2009.04.28

An expert on nuclear proliferation at the RAND Corporation in the United States, Brian Jenkins,says because of its proximity to Somalia and its close ties to the West, Kenya is vulnerable to the worst-case scenario, where an al-Qaida terrorist unleashes a "dirty bomb" in Nairobi causing the death of thousands.

VOA: standard.2009.05.01

"Worst-case scenario, if I don't find a job by the end of August, I move back with my parents."

VOA: special.2010.06.11

But while history shows that sometimes the worst-case scenario plays out, usually it doesn't.

WSJ: 2012: Taking a Look on Bright Side

The worst-case scenario would be government paralysis and maybe another election sooner rather than later.

CNN: STORY HIGHLIGHTS

The worst-case scenario for Indonesia: a complete banking meltdown, shutting down businesses and panicking people en masse.

CNN: THE LONG, HARD CLIMB BACK UP