There is continuing debate as to how effective sunscreen is in reducing melanomas—the evidence is weaker than it is for preventing other types of skin cancer.
关于防晒霜是否能有效减少黑色素瘤，争议仍然存在——相较于预防其他皮肤癌，防晒霜能减少黑色素瘤的证据还不充分。
The article raised doubts about how effective the new drug really was.
这篇文章对这种新药的实效有多大提出了疑问。
但是它的效果怎样？
Just how effective the policy will prove cannot yet be judged.
只是这项政策能多有效还无法判定。
But how effective would spending be at boosting demand?
但这样的消费对拉动需求有多大的效果？
Today it is not even certain how effective intervention might be.
现在，干预的手段会多有效也并不是很确定。
But there must be some doubt how effective these initiatives will be.
但对于这些措施有多大效果，人们肯定存在一些疑虑。
There's no consensus yet about how effective brain-training games really are.
脑力训练类游戏的效果到底有多好，目前还没有定论。
Future studies will be needed to show how effective they are as a treatment.
未来的研究需要探讨作为一种治疗方法，其有效性如何。
The team is monitoring the bridge closely to see just how effective these systems are.
Rice博士一队正密切地监测这座大桥以便观察这些系统有多大功效。
It is unclear just how effective this prevention measure is without the addition of a repellent.
如果不喷洒蜱剂，该防护措施的实际效果，尚不明确。
To see just how effective my tests are at exercising the code, I can check code coverage with Hansel.
为了看看上述测试在检验这块代码时效果如何，我可以用Hansel检查代码覆盖情况。
The research also shows how effective "target hardening" (ie, self-protection against crime) can be.
研究也向我们展示“目标硬化”(即防范犯罪的自我保护)的高效性。
If you choose to leverage memcached as your caching solution, I am sure you will see just how effective it is.
如果您选择使用memcached作为缓存解决方案，那么我敢保证您可以看到它的效率如何。
I was honestly surprised by just how effective the Burrows-Wheeler algorithm was when I started empirical testing.
当我开始凭经验测试时，我实在惊奇Burrows - Wheeler算法的有效性。
You'll be surprised how effective this can be: It's human nature to like praise, and to want to please the people we love.
你会非常惊诧于这是多么的有效：喜欢被赞扬和想讨好所爱的人是人的自然本性。
Aspirin appears to slow the spread of cancer, but doctors need to do studies on patients to confirm how effective the drug is.
阿司匹林似乎可以减缓癌症的扩散速度，但是医生们需要对病人进行研究从而确定药品到底能达到何种效果。
A new report from the Center for Evaluation and Education Policy at Indiana University examines research into how effective this is.
最近一个来自印第安那大学教育评估和教育政策中心的报告调查了这些做法的有效性。
A MONTH of tramping around Europe has given your correspondent a chance to see how effective the new e-passports are at border crossings.
本刊记者漫游欧洲一月，借机了解了一下新的电子护照在边境口岸的使用效果。
The critical question is how effective the major powers have become at managing regional conflicts and preventing them from escalating.
关键要看主要大国是否具备有效处理地区冲突、避免它们进一步升级的能力。
MONTH of tramping around Europe has given your correspondent a chance to see how effective the new e-passports are at border crossings.
本刊记者漫游欧洲一月，借机了解了一下新的电子护照在边境口岸的使用效果。
WHO is in touch with public health authorities and clinicians in affected countries and is gathering information about how effective the drugs are.
WHO正在与受影响国家的公共卫生主管部门和临床医生们保持联系，收集这些药物效果的相关信息。
Great as all this sounds, the trend towards online learning raises the question of just how effective online education is compared to traditional education.
这一切听起来都很不错，网络教育的这一转变趋势引出了下面这个问题，那就是网络教育跟传统教育相比有效性如何。
Patterns in the data: the frequency of recurring patterns in the data determines how effective compression will be for a particular table space or partition.
数据中的模式：对于特定的表空间或分区，数据中重复出现的模式的出现频率将决定压缩的效果。
In their paper published in Proceedings of the Royal Society b, the team describes the coating they used and how effective it was when used on a variety of insects.
在发表于《英国皇家学会学报b》的论文中，该小组向我们介绍了他们所使用的包裹材料以及该材料用在各种昆虫上的效果。
The movie is also an example of how effective a slide show presentation can be. Presentations are a powerful way to get your message across both verbally and visually.
这部影片本身也告诉我们好的幻灯片演讲何以做到传情达意，通过幻灯片演讲，你可以有力的以言语和图像的方式把你的想法传递出去。
The movie is also an example of how effective a slide show presentation can be. Presentations are a powerful way to get your message across both verbally and visually.
这部影片本身也告诉我们好的幻灯片演讲何以做到传情达意，通过幻灯片演讲，你可以有力的以言语和图像的方式把你的想法传递出去。
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