For Apple's rivals, iCloud presents a major challenge.
对于苹果公司的对手来说，iCloud是一个重大挑战。
Learning a workplace's customs can be a major challenge.
学习一个新的工作场所的风俗，可以成为一个很主要的挑战。
Now, in hiring, training and retaining talent, and so are facing a major challenge.
现在，企业在聘用、培养和留住人才等方面都面临着重大的挑战。
To overcome these obstacles has always been and continues to be a major challenge to aviation .
怎样克服这些障碍，过去经常是，而且现在仍然是航空界的重要难题。
In a quiet moment, identify a major challenge in your life, and think of all you've done to overcome it.
静静地想一想，在你的生活中最主要的困难是什么，想想你为了克服它所做的一切。
"If action isn't taken, we'll face a major challenge ensuring all patients receive timely care," Salsberg said.
“如果不采取行动，我们将面临能否确保所有患者得到及时医治的重大挑战，”萨斯·伯格说。
Diabetic patients may present a major challenge for the anesthesiologist when scheduled for ambulatory surgery.
糖尿病人安排做门诊手术对麻醉医生来说是一个重大的挑战。
Using technology to deal with high concentrations of anaerobic wastewater polyester slice is a major challenge.
利用厌氧技术处理高浓度的聚酯切片废水是目前的一大难题。
In this complex, fluid environment, providing an appropriate measure of oversight and control can be a major challenge.
在这个复杂的变换的环境当中，提供一个合适的方法来控制和监督将是一个主要挑战。
With some scientific experiments now generating petabytes of data, preserving it all is already becoming a major challenge.
一些科学实验现在也在产生数拍字节(petabytes)的数据，将其保存起来也会成为一项重大的挑战。
"This is an important finding," says Davy, as keeping off lost weight is a major challenge for people who have been dieting.
“这是一项重大发现，”戴维说，因为减轻体重对那些一直在节食的人们来说是一大挑战。
In this region, as elsewhere, the goals calling for reductions in maternal and neonatal mortality present a major challenge.
在该区域，与在其它地方一样，要求降低孕产妇和新生儿死亡率的目标是一项主要挑战。
A major challenge faced, was to link the Forth and Clyde Canal, which lay 35m (115ft) below the level of the Union Canal.
但是这项工程在施工过程中遇到了一个重大的难题：福斯·克莱德运河水面低于联盟运河35米(115英尺)。
Public transport is seen as the main solution, however the authorities are also aware that this will pose a major challenge.
公共交通体系是解决未来交通问题的一个很好的选择，然而，权威机构也意识到其所面临的巨大考验。
BACKGROUND: Successful treatment of gliomas in or adjacent to language areas constitutes a major challenge to neurosurgery.
背景：成功的治疗位于或毗邻于语言区域的神经胶质瘤，在神经外科领域构成了极大的挑战。
The World Food Program hopes to deliver 90 tons of aid to the area in the coming days but access remains a major challenge.
世界粮食计划署希望在未来几天向该地区运送90吨的食品救助，但是通道仍然是一个重大问题。
Living in a dormitory remains a major challenge as it means learning how to share space with others who are total strangers.
宿舍生活可谓是一个巨大的挑战，因为这意味着你要学会如何与完全不相识的人共处一室。
Hypotensive patients with these fractures present a major challenge in the diagnosis and treatment of the source of bleeding.
有这种骨折的低血压患者，诊断和处理其出血的来源存在很大的挑战。
A major challenge for Pacific island countries is to reinforce nutrition education in schools by promoting healthy eating practices.
对太平洋岛屿国家来说，一个主要挑战是在学校里加强营养教育，促进健康饮食习惯。
For multinational retail enterprises, how to adapt to the local market and to provide appropriate services is a major challenge.
如何适应当地市场需要，提供恰当的、合适的服务，对跨国零售企业而言，是一大挑战。
To manage these volunteers, especially their performances, is a major challenge faced by companies to create beneficial online communities.
为了管理这些志愿者，特别是他们的表演，是摆在企业创造有利的在线社区的一大挑战。
A major challenge in treating pancreatic tumors is overcoming their ability to force immune cells to tolerate and even support their growth.
治疗胰腺肿瘤一项重要的挑战是如何来克服这些肿瘤使免疫细胞耐受甚至支持肿瘤生长的能力。
A major challenge in studying the synapse is how to tell what observed effects are due to presynaptic factors and which to postsynaptic ones.
研究突触最大的困难在于如何区辨所观察到的反应是来自突触前或突触后因子所导致。
This does not mean that we could not entirely change it for the better, it just means that the crisis is not a major challenge for economics research.
这并不是说，我们不能进行完全变革来追求更好，而是说这场危机并不是经济学研究的一次关键挑战。
This does not mean that we could not entirely change it for the better, it just means that the crisis is not a major challenge for economics research.
这并不是说，我们不能进行完全变革来追求更好，而是说这场危机并不是经济学研究的一次关键挑战。
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