主因未详。
人们相信温室气体是全球变暖的主因。
It is believed that greenhouse gases are the main cause of global warming.
一般认为温室效应气体是导致全球变暖的主因。
It is believed that greenhouse gases are the main causes of global warming.
工人和雇主因为共同合约而联系在一起，这一合约双方中任何一方都能拒绝履行，而且这种关系在概念上是一种合伙关系。
The worker was bound to the master by a mutual contract that either one could repudiate, and the relationship was conceptualized as one of partnership.
口腔癌症的主因是什么？吸烟？酗酒？
What's the leading cause of oral cancer? Smoking? Heavy drinking?
我们知道温室气体是暖化主因
钱不是主因。
但是影院数字化的主因是他们不顾一切地想保持领先优势。
But the main reason cinemas are going digital is that they are desperate for an edge.
“不活在当下”是不幸福、痛苦和匮乏感的主因。
Living in the "not now" is a chief cause of unhappiness, pain and lack.
频宽成本被视为YouTube营运仍处于亏损状态的主因之一。
The cost of bandwidth is seen as one reason YouTube still operates at a loss.
有些企业主因为要独自承担企业成功所需的全部责任而迅速筋疲力尽。
Some business owners burn out quickly from having to carry all the responsibility for the success of their business on their own shoulders.
戴维·科赫向纽约当地媒体表示说他并不认为人类活动是全球气候变暖的主因。
David Koch told New York that he was unconvinced that global warming has been caused by human activity.
世界银行对此问题的一份报告显示，相对上涨的油价来说，粮价的人为上涨才是主因。
A report on the subject being prepared by the World Bank argues that artificially high rice prices are much more to blame than the effects of the fuel-price increase.
加拿大调查人员认为行李检查程序、行李检查设备和雇员培训方面的不足是这起案件的主因。
Investigators in Canada cited shortcomings in baggage screening procedures, screening equipment, and employee training.
专家称，工作负担、心理压力、环境污染和不健康的生活习惯等因素，是导致这一人群增多的主因。
Factors like heavy workloads, stress, environmental pollution and unhealthy lifestyles are known to be related to a rising infertility level, experts said.
其他专家认为气候变化是主因，气候变化造成适应冰冻气候的物种无法很好的应对变暖的环境。
Others argue that climate change was more to blame, leaving a species adapted for frozen climes ill-equipped to cope with a warming world.
煤炭是最污秽的化石燃料，燃烧时会比天然气多产生两倍的二氧化碳，成为全球暖化的主因之一。
Coal is the dirtiest of fossil fuels, producing twice the carbon dioxide that natural gas does when it is burned. That makes it a big cause of global warming.
毫无疑问，这次突发性通货膨胀的主因是石油以及商品价格的暴涨，这造成了全球范围内的财富转移。
That this burst of inflation has been caused mainly by rising oil and commodity bills should make it clear that a transfer of wealth is happening on a global scale.
南韩首尔汉阳大学的研究人员指出，摄食黑豆能降低脂肪与胆固醇，而两者都是造成第二型糖尿病的主因。
The researchers from Hanyan University, Seoul, Korea, said that eating black soya beans lowers fat and cholesterol levels, a major contributor to type II diabetes.
在未来40年里，食品供应增长70%可能比过去40年增长150%都要难，其主因就是产量问题。
Increasing food supplies by 70% in the next 40 years may prove harder than it was to raise them by 150% in the previous 40. The main reason: problems with yields.
虽然在地球大气层中的浓度甚微，一氧化二氮是一种很强的温室气体，而且正成为破坏平流层臭氧的主因。
Although present in minute concentrations in Earth's atmosphere, nitrous oxide is a highly potent greenhouse gas and is becoming a keyfactor in stratospheric ozone destruction.
报告呼吁发达经济体采取更强有力的措施来减少二氧化碳排放量。 二氧化碳排放被视为造成全球暖化的主因。
The report calls for stronger steps to be taken by advanced economies to reduce carbon emissions, seen as the main cause of global warming.
他们胜利似乎已成定局，主因是反对势力微不足道，无法推出一位足以挑战Evo Morales的强势候选人。
Their victory seems a foregone conclusion, given the weakness of the opposition and the lack of a rival strong enough to challenge Mr Morales.
NEC是新生儿重症看护病房中致病和致死的主因之一，据统计，每年美国新增患儿2500例，其中死亡率达百分之二十六。
NEC is a leading cause of disease and death in neonatal intensive care units, with a reported 2,500 cases occurring annually in the United States and a mortality rate of 26 percent.
NEC是新生儿重症看护病房中致病和致死的主因之一，据统计，每年美国新增患儿2500例，其中死亡率达百分之二十六。
NEC is a leading cause of disease and death in neonatal intensive care units, with a reported 2, 500 cases occurring annually in the United States and a mortality rate of 26 percent.
他们声称英国和美国等国家变化的经济形势是“男性衰退”的主因，很多男人因此失业了，而且获得传统工作的机会也越来越少。
They claim the changing economies of countries such as the UK and US have led to a ‘mancession’, with many men losing their jobs and fewer traditional employment opportunities。
在我的大学时代和早期职业生涯中，我做过C、C++、PHP以及在Linux下Perl的开发，这正是我坚定支持开源的一大主因。
Throughout my college days and early career, I did a lot of work in C, C++, PHP, and Perl on Linux, which is probably part of the reason why I'm such a big proponent of open source today.
当局宣称，大雨可能是造成坍塌的原因，但是多数评论员表示长期疏于维护才是主因，庞贝古城本应受到更好的保护而免于受到气候因素的破坏。
Officials said the probable cause was heavy rains, but most commentators said longstanding neglect was the root problem, saying Pompeii should have been better protected from weather.
婴儿潮也不是卫生保健系统成本高涨的主因。但由于婴儿潮这代人人口众多，且日渐步入老龄，所以总被拿来作为卫生保健系统成本高涨的挡箭牌。
Nor are baby-boomers, though they are often blamed for health-care inflation because there are a lot of them and they are getting old.
婴儿潮也不是卫生保健系统成本高涨的主因。但由于婴儿潮这代人人口众多，且日渐步入老龄，所以总被拿来作为卫生保健系统成本高涨的挡箭牌。
Nor are baby-boomers, though they are often blamed for health-care inflation because there are a lot of them and they are getting old.
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