Evennow, increasingly deadlier firearms are under development.

即使是现在，越来越多的致命火器仍正在开发中。

Of course, the longer you smoke the deadlier are the effects.

当然，吸烟史越是长久，影响也就越致命。

This virus won't get deadlier - that isn't in a germ's interests

病毒不会变得更致命——它对此没有兴趣

Chronic diseases are becoming deadlier and more burdensome to the poor.

对于穷人来说，慢性病变得更加致命，负担也更重。

Scientists warn that the virus could mutate into a much deadlier form.

科学家们警告，该病毒可能变异成更致命的形式。