不同物种之间的寿命存在显著差异，但在同一物种内，这一参数是相对稳定的。
There are striking differences in life span between different species, but within one species the parameter is relatively constant.
铱存在于陨石和火山物质中，但在火山物质中同时包含高浓度的镍和铬。
Iridium occurs in meteorites and volcanic material, but in the latter case it is accompanied by elevated levels of nickel and chromium.
非洲大部分地区的狮子已经消失了，但在过去的几年里，科学家们猜想这种大型猫科动物仍然存在于苏丹和埃塞俄比亚的偏远地区。
Lions have disappeared from much of Africa, but for the past few years scientists have wondered if the big cats were hanging on in remote parts of Sudan and Ethiopia.
虽然法律新闻报道的质量良莠不齐，但在很多新闻记者中，存在过度依赖律师给他们提供诠释的现象。
While the quality of legal journalism varies greatly, there is an undue reliance amongst many journalists on interpretations supplied to them by lawyers.
在我看来，虽然还没有发现，但在其他行星上一定存在生命。
In my opinion, there must be life on other planets though none has been discovered.
这个单词有希腊语的根源，但在古希腊语中并不存在。
The word has Greek roots but didn't exist in classical Greek.
这个单词有希腊语的根源，但在古希腊语中并不存在。
The word has Greek roots but didn’t exist in classical Greek.
虽然这个目标非常有价值，但在实际中，仍然会存在单个组件中的很多变更要求对其他组件进行更改的情况。
While this is a valuable objective, in reality there will still be many changes within a single component that require change in other components.
这些书尽其所能，向孩子们解释了一个人类家庭可能存在的模式，但在至关重要的地方，却都只能闭口不提。
These books strive valiantly to expand children’s consciousness of what a viable human family can be, but when it comes to what really matters there is nothing subversive about them.
但在实际应用中也同样存在问题。
现实世界并不像我刚才说的那么理想，但在某种程度上这种现象还是存在的，所以同样也要考虑多元化的问题。
We don't have the ideal world that I just described, but to some extent we do, so we want to think about diversifying in this world.
但在这里还存在一个问题。
他认为虽然常规的轨道不可能存在，但在某些地方粒子和行星会有稳定而不寻常的螺旋轨道。
He says while conventional orbits wouldn't be possible, there are some places where particles and planets could have stable though unusual spiral orbits.
虽然大体上富裕国家的银行和贫穷国家的银行彼此之间并不直接开展贷款和借款交易，但在数字上存在一种对称性，而这种对称性并不全是巧合。
Although by and large rich and poor countries' Banks are not lending to, or borrowing from, each other directly, there is a symmetry to the figures that is not entirely coincidental.
虽然在低温下机器运行正常，但在高温下它存在着许多问题。
Although the machine operates well at low temperatures, at high temperatures there are some problems.
印度法律并不承认这种人与动物之间的婚姻，但在印度农村和部落中这种仪式依然存在。
Indian law does not recognize weddings between people and animals, but the ritual survives in rural and tribal areas of the country.
但在处理逐步建设方面尚存在一定问题，包括资产价格膨胀以及监管重大失误。
But there are reasonable questions about how they handled the build-up, including asset price inflation and significant failures of supervision.
虽然云计算相对年轻，但在市场上已经存在无数的云计算实例。
Although cloud computing is relatively young, there are already myriad cloud offerings on the market.
但在过去的清理行动中，由于存在人脉广的工厂老板和激进的工人，计划委员会很难强加意志。
But in past purges, the planning commission has struggled to impose its will, thanks to well-connected factory bosses and militant workers.
然而，正如我们已经阐述的，尽管还存在着势均力敌的竞争，但在解释为什么企业在其利润业绩的彼此存在差异上，我们还是有一个可识别的学科基础。
Yet, as we have demonstrated, it has an identifiable disciplinary base in explaining why firms differ from one another in terms of their profit performance, despite of equilibrating competition.
中国与越南都取得了巨大的进步，但在南亚，极端的贫穷依旧广泛存在。
China and Vietnam have seen huge improvements but in South Asia extreme poverty remains widespread.
尽管AIG的信贷息差水平仍然存在违约的实际风险，但在这三家公司当中，AIG仍是它们最大的希望。
Of the three firms, AIG represents their best hope, even though its credit spreads are still at levels that suggest a real risk of default.
这种生活听上去像是从历史书上摘出来的，但在这里确实大量存在，不过其中包含着很多先进的现代建筑理念。
It all sounds like something from a history book, but there are qualities here that would impress the most forward-thinking of modern architects.
虽然这种解决方案总的来说还算有效，但在循环引用方面却存在一些盲点。
Although this solution is generally very efficient, it has a blind spot when it comes to circular (or cyclic) references.
虽然这种解决方案总的来说还算有效，但在循环引用方面却存在一些盲点。
Although this solution is generally very efficient, it has a blind spot when it comes to circular (or cyclic) references.
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