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）。

This may be caused by an absence of a sense of self.

这可能是因为自我感觉的缺失导致的。

The first category is caused by fatigue.

第一类是由疲劳引起的。

And Covid-19, the disease caused by the coronavirus?

那麽Covid-19这个由冠状病毒引起的疾病呢？

It was possibly caused by rough handling.

可能是野蛮装卸造成的。

The disease is caused by a defective gene.

这种疾病是由有缺陷的基因引起的。

The condition is most often caused by a stroke or traumatic brain injury.

这种症状常由中风或外伤性脑损伤引起。

But the environment is facing unprecedented perils, caused by human activity.

但由于人类的活动，环境正面临着前所未有的危险。

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。

The blue hue is caused by chemical reactions in plankton which produced the blue light.

蓝色荧光是由浮游生物产生化学反应产生的。

The pain is caused by irritable bowel syndrome, a chronic disease that currently has no cure.

这种疼痛是由肠易激综合征引起的，这是一种目前无法治愈的慢性疾病。

That these deaths were caused by the backlog.

这些死亡是由积压造成的。

It's caused by both in fact.

事实上，是由这两者造成的。

The argument was caused by cultural differences.

这场争执是由于文化差异所引起的。

The water shortages are being caused by climate change.

水资源短缺是由气候变化引起的。

“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。”

We've had burnout, exhaustion caused by work.

我们学了精疲力竭，因工作而疲惫不堪。

Those are caused by a viral infection.

由病毒引起。

COVID-19 is the disease caused by the coronavirus.

新冠肺炎是冠状病毒引起的疾病。

CAUSES Ectropion can be caused by — Muscle weakness.

原因睑外翻可由肌肉无力引起。