The cause of the fire is not yet known.

火灾的原因尚不清楚。

It had been the cause of much emotional upset.

那便是使人情绪一落千丈的原因。

The cause of the crash was given as engine failure.

撞车事故的原因被认定是发动机故障。

An inquest was held to discover the cause of death.

对死亡原因进行了调查。

They worked together to advance the cause of democracy.

他们合力推动民主事业。

He worked tirelessly for the cause of health and safety.

他为健康和安全事业孜孜不倦地工作。

Have you any comment to make about the cause of the disaster?

你对发生灾难的原因有何评论？

She had taken up the cause of a generation of American youth.

她已经开始着手一代美国年轻人的事业。

An inquiry was set up to determine the cause of the accident.

已展开调查以确定事故原因。

Police are still trying to establish the cause of the accident.

警方仍在努力确定事故的原因。

The newspapers provided little enlightenment about the cause of the accident.

报章对事故原因并未解释清楚。

Pilot error, to wit failure to follow procedures, was the cause of the accident.

飞行员的失误，即没有遵守操作程序，是事故的原因。

They hoped the new venture would further the cause of cultural cooperation in Europe.

他们希望这个新项目将促进欧洲文化合作事业。

Explain the cause of the cancellation.

解释取消的原因。

The cause of the collision was not immediately known.

碰撞的原因目前还不清楚。

What is commonly regarded as the cause of grade inflation?

通常被认为是造成分数膨胀的原因是什么？

He has been devoted to the cause of education for many years.

多年来，他一直致力于教育事业。

Science is the solution to stem rust, not the cause of its return.

科学是根茎锈病的解决办法，而不是其复发的原因。

The breakup of the null can be ruled out as the cause of the sinking.

空值的分解可以排除为下沉的原因。

The cause of the opening and closing is probably the difference in light.

开启和关闭的原因可能是光线的不同。

In fact, the cause of the failure was found by Chinese scientists independently.

事实上，失败的原因是由中国科学家独立发现的。

He has bought himself time by refusing to speculate publicly on the cause of the blast.

他拒绝公开推测爆炸原因，为自己赢得了时间。

Too much screen time is widely believed to be the cause of unhappiness among today's young people.

人们普遍认为，屏幕使用时间过长是当今年轻人不快乐的原因。

Such collected information helps doctors discover the cause of an illness faster and more correctly.

这些收集到的信息能帮助医生更快更准确地发现造成疾病的原因。

He has always championed the cause of gay rights.

他一直在为争取同性恋者的权利而斗争。

Police are trying to establish the cause of death.

警方在设法确定死因。

The cause of the accident was not immediately apparent.

这次事故的起因并非即刻可明。

It was almost impossible to pinpoint the cause of death.

几乎不可能确定死因。

The cause of the disease is difficult to pin down precisely.

病因目前还难以解释清楚。

A postmortem was carried out to establish the cause of death.

进行了尸检以确定死因。