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

Public statements from the various groups involved should not necessarily be taken at face value.

不必轻信各有关团体的公开声明。

《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.

并不是所有的伤亡都可以避免，但通过各地方、各州、以及国家间的协调，官员们希望可以避免最坏的情况。

youdao

"These animals may not necessarily be replicas of real animals."

VOA: standard.2010.08.09

But you know, sometimes what seems to be the virtuous may not necessarily be, so that would be an example.

但是现在你们知道了,有时候看起来低脂的食物并不一定低脂,这是个很好的例子

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

That would not necessarily be true in other parts of the world but it is true in this part of the world.

在其他地方,情况不一定这样,但是在美国,事实就是这如此

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

He said it may not necessarily be that different types of alcohol have a differing effect.

BBC: NEWS | Health | Alcohol does increase gout risk

The patients may not necessarily be able to return to where they received the treatment.

BBC: Treatment abroad: Greater choice, greater risk

So the irritating, if frustrating, turn of events should necessarily be a major concern.

FORBES: The Outrageous Haggling Over The Debt Ceiling: To Investors It Is Shouting "Buying Opportunity"