As it spreads west, it grows more virulent.

越往西传播得越严重。

The opponent made virulent criticism against his rival.

反对者对他的对手提出恶毒的批评。

Fortunately, while Ebola is highly virulent, several factors limit its contagiousness.

幸好，虽然埃博拉极度致命，但它的传染性被以下因素所限制。

And then in 2014, there was something we called stony coral tissue loss disease as incredibly virulent.

然后在2014年，我们发现了一种叫做石珊瑚组织损失病的疾病，它的毒性非常强。

She had a very virulent form of the illness.

她患上了恶疾。

The fungus is so virulent it can wipe out whole colonies of ants.

这种剧毒的菌类足以杀死整个蚂蚁群落。

But the virus spread and, whether sooner or later, became virulent.

但这种病毒后来传开了，而且早晚都会夺去性命。

Dr. King was fatally shot by petty thief and virulent racist James Earl Ray.

他受到致命的枪击，凶手是小偷，也是怀有敌意的种族主义者詹姆斯 厄尔 雷(James Earl Ray)。

But it wasn't a virulent flu or poorly-chosen mushrooms that caused their deaths.

但并不是致命的流感或吃了有毒的蘑菇导致了他们的死亡。

Cholera is an extremely virulent disease that can cause severe acute watery diarrhoea.

霍乱是一种毒性极强的疾病，会导致严重的急性腹泻。