To understand that we need to first understand where they start.

在我们弄清楚前，我们得先了解其起因。

That, he said, was the triggering mechanism.

他说，就是起因。

The cause of the fire is still being investigated.

火灾的起因正在调查中。

Authorities still don't know what caused the fire.

当局仍然不清楚火灾的起因。

Do you have any sense of what caused all this?

你一事件的起因吗？

What do you think is the cause of violence today?

认为当今暴力的起因是什么？

Most of the fires are started in order to clear land for plantations.

大多数火灾的起因是为了开垦耕地。

And the cause of infinite motivation is necessity.

而无限动力的起因是必然性。

According to Google, what was the cause of the accident?

根据谷歌公司的说法，起事故的起因是什么？

And the reason for this is creeping up on the U.S. East Coast.

事情的起因就在美国东海岸。

Preliminary investigations shows the fire was triggered by an electrical fault.

初步调查表明，火灾起因是电线短路。

It began over the French government's planned increase in fuel taxes.

起因是法国政府计划提高燃油税。

The cause of and solution to all of life's problems.

生命中所有问题的起因和解决办法。

Officials there don't know yet what started a new surge of wildfires.

当地发生山火，相关官员对火灾起因尚不清楚。

Officials also said it's not sure what caused the collapse.

官员表示，目前并不能确定坍塌的起因。

Actually, there's still a lot of debate about the causes.

事实上，关于大萧条的起因还有很多争论。

The incident began when he asked her to leash her dog.

事情的起因是他要求她给狗拴上狗绳。

Police say a dispute over housing may have been the motive for the attack.

警方表示，此次袭击的起因可能为住房纠纷。

The culprit is a protein called tau.

个起因就是一种叫tau的蛋白。

The subpoenas escalate the committee's probe into the attack's origins.

些传票使委员会对袭击起因的调查逐步加强。