从收集到的数据来看，平均而言，导致我们睡眠时间减少的最大元凶的似乎是体育赛事、时节变换和假期。
From data collected, it seems the things that cause us to lose the most sleep, on average, are sporting events, time changes, and holidays.
在美国，吸烟是食管癌的主要元凶。
Cigarette smoking is a major cause of esophageal cancer in the United States.
缺水是导致人疲惫的元凶之一。
Dehydration is a sinister cause of fatigue because it slowly creeps up on you.
赛弗似乎决心要揭发元凶。
他们不愿承认他们未能清洁公共卫生系统才是真正的元凶。
They were unwilling to consider that it was their own failure to clean up the public sanitation system that was the real culprit.
该研究还补充道，畜牧业是导致氮污染的最大元凶之一。
Livestock farming is one of the biggest causes of nitrogen pollution, it adds.
肺癌在癌症中致命性第一，吸烟是导致患病的头号元凶。
Lung cancer is the leading cause of cancer death, and cigarette smoking causes most cases.
美联储可能不是导致衰退的元凶，但是它仍是一个从犯。
The Fed may no longer be the prime suspect for causing recessions; but it is still an accessory to the crime.
我确信人们比不如从前果断了，元凶之一就是我们发达的通讯网络。
I'm absolutely convinced that people are much less decisive than they used to be.One of the culprits is our connected world.
一些专家认为，海洋缺氧可能是主要海洋物种灭绝的元凶。
Some experts believe that Marine dysoxia may be responsible for major oceanic extinctions.
一项新的报道指出微弱的社会纽带是都市精神疾病的元凶。
A new report says that weak social ties may be to blame for the higher incidence of mental disorders in cities.
长期以来，科学家指责过分干净的环境是哮喘和过敏的元凶。
Scientists have long blamed our overly sterile environments for increases in asthma and allergies.
在试图解释全球流行的肥胖时，研究人员往往指陈人们无法直接控制的元凶。
In THEIR attempts to explain the global epidemic of obesity, researchers have often taken to fingering culprits beyond people's direct control.
悬浮微粒、特别是印度地区，生产和生活燃煤所带来的炭黑，才是真正的元凶。
Particulate matter, particularly black carbon from cooking fires and coal-fired plants in India, is the real culprit.
我们生活中的危险是越来越少了，但是引发焦虑的元凶是越来越多了。
Our life is very rarely in danger, and yet the anxiety-producing situations are increasing.
Stamler医生因此怀疑一氧化氮的缺乏就引发输血问题的元凶。
Dr Stamler thus wondered if a lack of nitric oxide was causing the problems associated with transfusions.
但是，即使税负很重，税收却不是导致印度私有航空业衰落的唯一元凶。
But burdensome though the taxes are, they are not the only reason why India's private airlines are suffering.
让人颇为不解的是，之后他们再次失去家园，而这次沙龙更是直接元凶。
Curiously, Mr Sharon played a more direct hand when they lost their home a second time.
水系中的过量氮是造成密西西比河与其他河流河口处“死亡区”的元凶。
Excessive nitrogen in the water system contributes to the "dead zone" found at the mouth of the Mississippi and other rivers.
科学家发现，越来越多的鲸鱼被晒伤，而臭氧层空洞则可能是幕后元凶。
Scientists have discovered that a growing number of whales are suffering from sunburn - and that the hole in the ozone layer could be to blame.
獾被说成是牛结核病的元凶，而受感染的病牛的大规模运输却被忽略不提。
Badgers are blamed for bovine TB, while the mass transit of infectious cattle is overlooked.
该报道并不意味着看电视总是有害的，或是，电视是导致孩童注意力障碍的唯一元凶。
The study does not necessarily mean that watching television is always bad, or that TV is the sole culprit concerning attention deficit problems in kids.
在整个区域内，野生动物栖息地的破坏已经成为动物数量大幅度缩减的元凶。
The habitat destruction has contributed to a plunging animal population throughout the region.
但在以前的许多研究报告中，人们认为基因或环境因素是导致这种联系的元凶。
In many past observational studies, however, basic genetics or environmental factors could be blamed for this association.
地下水位的降低则是地表陷没的元凶，而新奥尔良，和威尼斯城一样，正在下陷。
This decrease in the water table is a major contributor to land subsidence - New Orleans, like Venice, is sinking.
证据与观点(家庭资产负债表和房价问题是经济复苏疲软的主要元凶)更加一致。
The evidence is more consistent with the view that problems related to household balance sheets and house prices are the primary culprits of the weak economic recovery.
吸烟仍是那些可预防性死亡的首要元凶，在生命的各个阶段对人体健康都有消极影响。
Smoking remains the leading cause of preventable death and has negative health impacts on people at all stages of life.
吸烟仍是那些可预防性死亡的首要元凶，在生命的各个阶段对人体健康都有消极影响。
Smoking remains the leading cause of preventable death and has negative health impacts on people at all stages of life.
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