The revelations have led to questions about safety and whether corrupt subcontractors cut corners to line their pockets.
这些问题进一步让人质疑安全问题，承包商是否偷工减料中饱私囊也被打上一个问号。
But the research on this treatment is still at an early stage, and many questions remain about its safety and effectiveness.
不过，针对这种疗法的研究还处于初级阶段，有关其安全性及疗效还存在许多问题。
Over the decades, the fears have waxed and waned, but questions about their safety are still debated.
几十年以来，这种畏惧感经历了阴晴圆缺，但关于它们安全性的问题还在争论当中。
The incident, which was disclosed only today, will raise fresh questions about the quality of care at Stafford hospital and the NHS's determination to improve patient safety.
在今天才被揭露的这一事件，给斯塔福德医院的医护质量以及英国国家医疗服务系统关于提高对患者安全的考量提出了新的问题。
There are questions about the safety and efficacy of a surprising number of therapies, including some types of surgery.
令人吃惊的是有相当多的治疗方法都存在安全性和有效性方面的问题，包括一些手术手段。
Given the highly theoretical nature of warp speed travel, safety issues usually take a backseat to fundamental questions about its feasibility.
考虑到翘曲速度旅行的超理论本质，安全问题从来没有可行性的原理问题重要。
The accident has also raised wider questions about mine safety in Chile, which is the world's biggest copper producer.
另外，这场事故由于发生在全球最大的铜矿开采国智利，还引发了智利全国关于矿井安全问题的广泛质疑。
But lawyers, safety advocates and consumers continue to raise questions about the cars' electronic systems, which they say could cause a car's throttle to stick.
但是律师，汽车安全的支持者以及消费者仍持续提出对丰田汽车电子系统的质疑，而这极有可能造成汽车油门的失灵。
Most of the time, when people ask broad questions about difficult issues, they're not so much looking for answers as for authority, for a safety net to fall back on.
大多数情况下，当人们对一些棘手话题提出开放式问题的时候，他们并不意图得到答案，而更多地是在寻求一个权威，一张保护网来作为犯错时的退路。
He says after many years of studies, better kinds of research are still needed to settle questions about cell phone safety.
他说，经过多年的研究，更好的种研究仍然需要问题解决手机的安全。
They want to know about side effects, safety, and they ask good questions.
她说，“他想知道药物的副作用和安全性，会提出许多有意义的问题。”
In America, its biggest and normally most profitable market, Toyota has been plagued by highly publicised recalls that have raised embarrassing questions about the safety of its vehicles.
美国是丰田最大的、通常也是利润最丰厚的市场。 但是由于沸沸扬扬的召回事件，美国消费者开始怀疑丰田汽车的安全性，丰田因此被搞得焦头烂额，处境困窘。
The accident again raises questions about the safety of the plant.
这起事故再一次引发了人们对于工厂安全性的质疑。
But there are still many questions about both their safety and their efficacy.
但人们对它的安全性和功效仍然有很多疑问。
The findings also raise serious questions about the reliability of the European safety assessment and advisory procedures.
这些研究发现也使人们对于欧洲安全评估和咨询程序的可靠性提出的严重的质疑。
Thee survey, part of the American medical Association's Guidelines for Adolescent Preventive Services program, also includes questions about medical history, health, school, safety and substance use.
这项调查是美国医学联合会青少年预防服务项目的一部分，其涉及的问题还有医学历史、健康、学校、安全以及物质使用等。
Remember that it is important, if you have questions about helmets, doubt the safety and reliability, please replace soon, please always check your helmet.
记住非常重要的一点，如果你对头盔有疑问，怀疑其安全和可靠性，请立即更换，请经常检查您的头盔。
There are also questions about their safety.
而且锂-硫电池还存在安全问题。
There are also questions about their safety.
而且锂-硫电池还存在安全问题。
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