起因

The firemen were in a puzzle about the cause of the fire.

消防队员对这场火灾的起因困惑不解.

The exact cause of the accident is still in dispute.

事故的真正起因仍有争议.

He was asked to investigate the causes of a railway accident.

要他去调查火车肇事的起因.

His whole life has been devoted to studying the origin of cancer.

他的一生都献给了对癌症起因的研究.

Police are still investigating how the accident happened.

警方仍然在调查事故的起因。

The country's present difficulties arise from the reduced value of its money.

该国目前的困难起因于其货币的贬值.

Their account of the causes of the war conflicts with ours.

他们关于战争起因的报道与我们的相反.

The cause of the accident was not immediately apparent.

事故的起因并非一目了然。

Recent research has cast new light on the causes of the disease.

最新研究使人们进一步了解了这种疾病的起因.

The U-shape of some glacial valleys may be due also to deposition.

某些U型冰川谷也可能起因于沉积作用.

The causes of anorexia are much debated.

关于厌食的起因存在颇多争论。

The fire is of suspicious origin.

这场火灾起因可疑.

Gilbert proposed in 1600 that electrical effects arise from an electric fluid.

1600年,吉伯提出,电效应起因于一种电的流质.

Accidents often arise from carelessness.

事故常起因于粗心.

The physical origin of the gauge transformation is a mystery.

这个规范变换的物理起因还是个谜.