In my opinion, there must be life on other planets though none has been discovered.
在我看来，虽然还没有发现，但在其他行星上一定存在生命。
Over the years several other theories have been put forth, but none has been accepted by the scientific community.
多年来，又有人提出了一些其他的理论，但没有一个被科学界接受。
目前无人遭到起诉。
But none has been so revealing as this.
但是，没有一张有如这一张这么暴露。
But the doctor says none has been back since.
但是，卡班巴医生讲道这些没有任何效果。
In fact, in most studies, none has been found.
实际上，在很多研究中，没有发现一个。
So far, few astronomers have conducted searches for Dyson spheres—and none has been successful.
目前为止，几个天文学家已经开始了对道森球体的搜寻工作，但是一无所获。
But airport officials in those countries say fuel is available to Iranian airplanes and none has been refused.
但这些国家的机场官员说，伊朗航班可以加油，没有伊朗航班被拒。
The wine industry has tried various ways to remove alkyl-methoxypyrazines, but none has been particularly successful.
葡萄酒业尝试了很多种方法去除烷基-甲氧基吡嗪，但是没有一种特别成功。
None has been designated in the Caribbean or the northern Pacific or off Alaska, despite the presence of important Marine ecosystems in these About sponsorship areas.
而尽管在加勒比海、北太平洋或阿拉斯加沿岸，相关海洋生态系统的重要性已经显现出来，但是还没有任何相关的保护措施。
Several answers have been proposed to address this fundamental question, but none has been proven-and even adequately testing them has proven to be a formidable challenge.
已经有几个答案被提出来来回答这个基本问题，但是没有一个被证明——甚至对它们的充分的检验也被证明是一个可怕的挑战。
Iranian officials said they came to Kazakhstan with several possible counteroffers, but so far none has been put on the table. Peter Kenyon, NPR News, Almaty, Kazakhstan.
伊朗官员表示，他们来到哈萨克斯坦也带来了一些建议，但是目前还未能提出。N PR新闻，彼得·肯扬哈萨克斯坦阿拉木图报道。
Since the first reported cases, many substances in the pyrolysate have been studied as potentially leading to the leukoencephalopathy but none has been positively identified.
自从首例报道之后，在这些热解物中的许多物质被研究以明确是那种诱发了白质脑病，但尚没有一种被明确肯定。
None of these concerns seem to have been appreciated by the EAT-Lancet Commission's representative, Brent Loken, who said "India has got such a great example" in sourcing protein from plants.
这些担忧似乎都没有得到EAT 柳叶刀委员会代表布伦特·洛肯的认可，他说，在从植物中获取蛋白质方面，“印度是一个很好的例子”。
The programme has been so organized that none of the talks overlap.
日程做了精心安排，以使每一讲都没有重复内容。
None of these legal provisions determine at what point adulthood has been reached but they do point to the prolonged period of adolescence.
这些法律条文没有规定什么时候已经到了成年期，但是他们确实指出了延长的青春期。
None of us has ever been tucked in at night.
晚上从没有人给我们任何一个盖过被子。
Scientists have advanced many theories about why human beings cry tears, none of which has been proved.
科学家提出了许多关于人类为什么哭的理论，但没有一个得到证实。
He has made a lot of promises, but none of them have been carried out.
他的承诺可不少，但都是口惠无实。
Yet none of these benefits has been factored in because none has yet been proven.
不过这些益处因为尚未得到证实，所以都没有被考虑进去。
The skull was distorted and, if any other parts of the skeleton happen to exist, none has yet been published in the scientific literature.
其头骨发生了变形，而且假设骨骼的其他部位碰巧也存在，科学文献上却没有任何记载。
Otherwise, none of my research has been directly useful. It has been driven solely by the desire to find out.
不过话又说回来，我的研究没有一个是直接有用处的，它们仅仅是出于我想找到答案的渴望，而驱动我去做这件事的。
"Much of this stuff has been tested, but none of it has been tested with beam, " Limon says.
“这些材料中的许多都已经经过测试，但是它们中无一经过粒子束存在情形下的测试，”Limon说道。
Since that time, hundreds of astronauts have been into orbit, but none has ventured further.
从那时起，已经有数百名宇航员进入轨道，但是，没有人再做进一步的尝试。
None of the assailants has been arrested or questioned.
这些攻击者没有一个人被捕或被询问。
None of the accusations has been proven.
但是这些指控都没有被证实。
None of these promises has been fulfilled.
这些承诺都没有得到履行。
For all the fine talk of heritage funds, the oil bills are behind schedule; none has yet been put to Parliament.
对于所有遗产基金的好的谈论，石油草案没有跟上计划；没有任何谈话在议会中展开。
For all the fine talk of heritage funds, the oil bills are behind schedule; none has yet been put to Parliament.
对于所有遗产基金的好的谈论，石油草案没有跟上计划；没有任何谈话在议会中展开。
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