The cause of the crash is still unknown.

事故发生的原因现在还未知。

It is not the first time one of Google's famed self-driving cars has been involved in a crash, but it may be the first time it has caused one.

谷歌公司名声在外的无人驾驶汽车并不是第一次卷入撞车事故中，但是这是第一次由它引起的撞车事故。

A dearth of corn caused the prices to go up.

谷物匮乏造成价格上涨。

One such cause now seeks to end biomedical research because of the theory that animals have rights ruling out their use in research.

一个这样的诱因是正在寻求终止生物医学的研究，因为有这样一种理论说，动物享有权利禁止它们被用于实验。

These two factors conspire to cause a loss of control.

这两个因素合起引起了失控。

A dam broke on Friday causing mud and mining debris to flood into the city and in other parts of the region.

上周五，一座大坝决堤，导致泥浆和矿渣涌入城市和该地区的其他地方。

The illicit trafficking of people and narcotics causes harm to our societies.

人口和毒品的非法贩卖对人类社会造成了危害。

Overeating and no exercise are the direct cause of her becoming corpulent.

过度饮食和不锻炼是她变胖的直接原因。

Causes of accidental fires run the gamut.

意外火灾的原因是多方面的。

But, the force of geographic conditions peculiar to America, the interplay of the varied national groups upon one another, and the sheer difficulty of maintaining old-world ways in a raw, new continent caused significant changes.

但是，受美囯特有地理条件的影响、不同民族间的相互影响以及在这片荒蛮的新大上维持旧秩序的万分艰难，给这片新大了巨大的变化。

Longbottom causes devastation with the simplest spells.

隆巴顿即使用最简单的咒语也能造成破坏。

It's caused by volatile organic compounds, or VOCs.

室内空气污染的源头是挥发性有机化合物（简称为VOCs）。

“George caused a diversion by dropping another Dungbomb, I whipped the drawer open, and grabbed—this.”

“乔治又扔了个大粪弹，分散了他的注意力。我飞快地拉开抽屉，一把抓住这个。”

They are watching their children succumb to malnutrition caused by poverty and economic deprivation.

她们眼睁睁看着自己的孩子由于贫困和经济剥夺而营养不良。

Joker caused some fear and debate in America leading up to its release.

在发布之前，《小丑》在美国引起了一些恐惧和争论。

All in all, the splashdown caused quite a commotion.

总之，他的空降完全引起了一通大乱。

A bacterium called Yersinia pestis causes the plague. It's transmitted to humans by fleas.

这场瘟疫由一种名为鼠疫杆菌的细菌引发。这种细菌通过跳蚤传染给人类。

Officials don't know yet what caused the accident.

官员还不知道是何原因造成这次事故。

Cortisol is toxic, and it causes cloudy thinking.

皮质醇是有毒的， 它会导致思维不清晰。

Having to rely on America has caused particular anxiety.

不得不依赖美国尤其让他们焦虑。