But to find out whether such grandiose ideas will ever be possible-let alone how to realize them-physicists need to get a lot better at manipulating individual atoms and molecules.
暂且不管如何实现，仅是探寻这些宏伟的想法实现的可能性，物理学家就需要在操纵原子和分子方面投入更多的研究。
In contrast to many modern theoreticians, Plato did not think that a "neutral" or "value-free" description of the world and human affairs is possible, let alone desirable.
不同于很多现代理论家，柏拉图认为，对世界和人类事务作“中性”或者“不作价值判断”的描述无论是否可取，都是根本不可能的。
Many lawyers doubt, for[color=#000000] example, whether it is possible to produce a prenuptial agreement that would be globally recognised, let alone enfor[color=#000000]ceable.
例如，很多律师对是否能够制定处一份全球认可的婚前协议尚且表示怀疑，更不用说失去是去实施了。
Likewise, many analysts thought 1ghz CPUs were physically not possible, let alone practical, for all but the most esoteric of situations.
同样地，很多分析家都认为针对所有最为复杂的情形的1ghzCPU在物理上无法实现，更别说付诸实践了。
As long as he is living, he always work and study as hard as possible, unwilling to dream his life away, let alone waste even a single moment of life.
当他活着一天，总要尽量多工作、多学习，不肯虚度年华，不让时间白白地浪费掉。
As long as they are alive, they always work and study as hard as possible, unwilling to dream their life away, let alone waste even a single moment of their lives.
当他活着一天，总要尽量多工作、多学习，不肯虚度年华，不让时间白白地浪费掉。
As long as they are living, they always work and study as hard as possible, unwilling to dream their life away, let alone waste even a single moment of their lives.
当他们活着一天，总要尽量多工作、多学习，不肯虚度年华，不让时间白白浪费掉。
As long as they are living, they always work and study as hard as possible, unwilling to dream their life away, let alone waste even a single moment of their lives.
当他们活着一天，总要尽量多工作、多学习，不肯虚度年华，不让时间白白浪费掉。
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