医疗水平的进步意味着曾经的致命伤已不再致命，同时返乡士兵身上的累累伤痕也很难与伤情分类对应起来了。

Medical advances mean that soldiers often come back with collections of wounds that would previously have been fatal, and do not fit easily into its categories.

youdao

如果说地震、洪水或风暴潮从来就是致命的，那么在日益城市化的当今世界，这些灾害的致命性则更大。

If earthquakes, floods or storm surges were deadly in the past, they are deadlier still in an increasingly urbanized world.

youdao

之后，我所说的致命，是一个染上致命疾病的可能性！

Then what exactly I’m talking about deadly is the possibility of harboring a disease.

youdao

And the real killer is if we get too close we're even going to have nuclear-nuclear repulsion between the nuclei of the two atoms.

而更致命的是，如果我们靠得太近,我们甚至会有,两个原子核之间的排斥力。

麻省理工公开课 - 化学原理课程节选