If the scientist has not worked hard to develop his knowledge and skills, he may not recognize that lucky breakthrough when it comes along.
如果科学家没有努力提升他的知识和技能，当幸运的突破来临之时他可能会意识不到。
It has not worked several times, "Ricks reminded Greene."
几次都没有奏效。
That has not worked. It is hard to regulate the actions of billions of people.
其中一些国家已尝试控制每户孩子的数量，但这并不起作用，计划数十亿的人口太困难。
After all, these 50 years have shown that isolation has not worked. It's time for a new approach.
毕竟，50年的孤立政策已被证明无效，现在是采用新方法的时候了。
On top of that, Jim has not worked for great leaders in his career and lacks formal management training.
除此之外，吉姆在职业生涯当中也没有为伟大的领导者工作过，而且缺乏正规的管理培训。
The existing model for the mobile internet business has not worked and is already showing signs of strain.
手机网络业务的现有模式已经不起作用，而且已经呈现出过度紧张的迹象。
And this traditional business model has not worked very well on the Internet, especially not in a bad economy.
而且这种传统的商业模式在互联网上也收效不好，尤其是在这经济低迷的时候。
Prohibition has not worked, and China needs entrepreneurial companies like Baidu, Dangdang, CTrip and Ambow Education.
过去的禁止政策并没有收到成效，而且中国需要像百度、当当、携程和安博教育一样富有创业精神的公司。
The forum will facilitate an analysis of what works, of what has not worked and why, and of how to accelerate progress.
论坛将促进分析哪些对策有效，哪些对策无效，原因何在，以及如何加速进展。
But the approach has not worked so well since the financial crisis hit in 2008 and many insurers cut or cancelled cover.
但是，在备受经济危机冲击的2008年，许多保险商减少或者取消了信用担保，这种机制因此遇到了很大的问题。
For a man may do his work with wisdom, knowledge and skill, and then he must leave all he owns to someone who has not worked for it.
因为一个人凭智慧、知识、技能所辛苦得来的，竟要留给那些未曾付出努力的人。
I'm discussing the progress we are making, the lessons we have learned from our experience, and how we are fixing what has not worked.
目前我正在讨论的是我们所取得的进展，我们从过去的经历中得到的教训，以及我们对于那些未能奏效的措施所做的补救。
'While we initially received optimistic reports about the (top kill) procedure, it is now clear that it has not worked,' Obama said in a statement.
“虽然我们起初接受有关灭顶法的乐观报告，但是很明显，它不起作用，”奥巴马在声明中表示。
Exchange examples of successful research conducted in low-resource Settings to help understand what has worked and what has not worked and why; and.
交换在资源匮乏环境中进行的成功研究的实例，以帮助了解什么有效，什么无效以及原因；和？
Mark Doyle, who's reported from Africa for many years, looks at why aid is necessary, and why much of what's been donated in the past has not worked.
马克·多伊勒是一位在非洲工作了多年的记者。他将会探讨为什么一定要给非洲援助，以及为什么以前给予非洲的大部分援助都没有起到作用。
"A large sanctions effort has been under way against Iran for some time. It has not worked to curb Tehran's nuclear appetite, and it will not," he said.
“实行针对伊朗的大规模制裁行动已经有一段时间了，却并没有遏制住德黑兰的核野心，以后也不会奏效，”他说。
But it did not deal with the underlying faults in the single currency, which has not worked as hoped to promote convergence among its members' economies.
但它没能处理单一货币的固有缺陷，欧元并没有如希望的那样促进其成员的经济趋同。
Some of these counties have tried to throttle the number of children per family. That has not worked. It is hard to regulate the actions of billions of people.
其中一些国家已尝试控制每户孩子的数量，但这并不起作用，计划数十亿的人口太困难。
So far this has not worked out particularly well, and I am on the verge of losing my house, but I remain optimistic because I know I can do so many things so well.
至今，这个难题都还没有被很好地解决，我马上就要丢了我的房子了，但是我还居然保持着乐观，因为我还相信我能够非常好地处理好一切。
The new system has not yet worked out any cheaper for the universities.
对于大学来说，新系统并没有降低任何成本。
And a foreigner who has studied or worked in China for at least a year will be allowed to buy a home, but not to become a landlord.
在中国学习或者工作满一年的外国人也允许购置一处房屋，但不可以对外出租。
Applying both methods to worldwide data, the scientists say industrial fishing over the past decades has not simply worked its way downwards from the top of the food chain -- it has gone upwards, too.
如果将关注食物链顶端和底端的方法同时应用到全球性数据上，那么，科学家们得出的结论是，过去10年的工业捕渔更偏向捕食低食物链鱼类，而对高食物链等级的鱼类而言，它们的食物总量减少了将近一半，倘若按照食物链理论的逻辑，现存高食物链等级的鱼类总数是增加了而不是减少了，因此，不能够简单地认为，工业“捕渔”导致鱼类总体的数量减少。
It has worked for me, but I do not give you any warranty, that it is error free.
在我这工作得很好，但是我不能给你任何担保，这是过失自由。
But the new project will not include a big gaming element, despite previous reports, said a person who has worked on the products.
不过这个新项目将不会引入大的游戏元素，尽管先前有过报导，曾在该产品工作过的一位人士说。
So, although there has not been any oil in New Orleans, we have worked really hard to get the message out that all of the things visitors come to enjoy in New Orleans are unaffected," she said.
所以，尽管新奥尔良市没有任何残油，但我们还是努力传达出一个信息，这就是，游客们喜欢的新奥尔良的所有东西都没有受到影响。
This should not be news to anyone who has worked on different-sized project teams.
这对任何在不同规模项目团队工作过的人来说并不陌生。
It is not known why the jobs were given only to foreigners, as the contract is secret: IREM has worked with this team and is thought to believe its staff especially skilled.
由于是秘密合同，因此不知道为什么该工程仅雇佣外国人：IREM与该团队合作过，其团队成员的技能也被认为特别娴熟。
It is not known why the jobs were given only to foreigners, as the contract is secret: IREM has worked with this team and is thought to believe its staff especially skilled.
由于是秘密合同，因此不知道为什么该工程仅雇佣外国人：IREM与该团队合作过，其团队成员的技能也被认为特别娴熟。
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