Carelessness is the cause of his failure.

粗心是他失败。

Brain lesions can be caused by bacterial infections.

大脑损伤可能由细菌感染引起。

Drinking is a principal cause of highway deaths.

酗酒是公路死亡事故最主要。

He took up the cause with evangelical fervor.

他以传道者般热情投身于这一事业。

Impure drinking water is a cause of disease.

不洁饮用水是引发疾病一个。

The latter two eponymic lesions have specific causes.

最后两个以人名命名病变有其特。

Unhappiness is the root cause of his illness.

不开心是他生病根源。

The teacher tried to analyse the cause of our failure.

教师设法仔细分析我们失败。

S-and such results will follow from such and such causes.

有如此这般就有如此这般结果。

Roughness of the skin can be caused by bad diet.

饮食不好可能引起皮肤粗糙。

I don't know the cause of his abrupt leave.

我不知道他突然离去。

The tax increases will, in the aggregate, cause much hardship.

增加税收归结起来多困难。

A benign tumour will not cause you any fatal harm.

良性肿瘤不会对你有致命伤害。

People hate those who unwittingly harm the cause of peace.

人们痛恨那些在不知不觉中危害和平事业人。

We surmised that the delay was caused by some accident.

我们推测迟延是由某种事故所致。

He was determined to track down the cause of food spoilage.

他决心查出食品腐烂。

It transpired that the fire was caused by a careless smoker.

据传这场大火是由一位粗心吸烟者。

If the virus cannot replicate itself, it cannot cause illness.

如果病毒不能变异，也就不能够诱发疾病了。

Resinification of furfural on the catalyst was the main cause of deactivation.

糠醛树脂化结焦是导致催化剂失活主要。

Trying to help him to improve his pronunciation is a lost cause.

想帮他纠正发音，那肯定没什么用。