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。

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

根据谷歌公司的说法，这起事故的起因是什么？

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

多数火的起因是为了开垦耕地。

That, he said, was the triggering mechanism.

他说，这就是起因。

The Norwalk Fire Marshal is investigating the cause and origin of the fire.

诺防队长正在调查火的原因和起因。

In other words, we have to go beyond the proximate cause and probe further and further.

换句话说，我们必须超越事物的近因，进一步讨论其起因。

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。

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

当地发生山火，相关官员对火起因尚不清楚。

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。

Authorities still don't know what caused the fire.

当局仍然不清楚火的起因。

A chain reaction happens when one event becomes the cause of the next.

当一个事件成为下一个事件的起因时，就会发生连锁反应。

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

事实上，关于萧条的起因还有很多争论。

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。

Allergies tend to run in families, so genetics may be one culprit.

过敏症都有家族的倾向，所以基因可能是一个起因。

The culprit is a protein called tau.

这个起因就是一种叫tau的蛋白。

All of these events — all of these effects — have a cause.

所有这些事件——所有这些结果——都有起因。

However it began, the Great Chicago Fire lives in infamy.

无论起因如何，芝加哥火都被打上了耻辱的印记。

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。

Do you have any sense of what caused all this?

你知道这一事件的起因吗？

This description came about because that side of the moon cannot be seen from Earth.

这种描述起因是月球的这一面无法从地球上看到。