It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.
我们永远也不会知道这种计算能力是何时、如何发展起来的，但可以肯定的是，在人类形成半永久定居点的时候，这种计数法已经发展得很好了。
The service provider guarantees that the services it provides will be available for a certain percentage of time (for example, 99.9%).
服务提供者保证它提供的服务在一定百分比的时间内(例如，99.9%)是可用的。
If the test data is gathered before hand it ensures the QA life cycle will be not be disrupted with the possibility that data is unavailable for certain test cycles.
如果事前收集了测试数据，这就确保了QA生命周期不会因为在特定测试周期中数据可能不可用而受到干扰。
However, we can be certain that if the program doesn't hit the first base case it will at least hit the second one when it gets to the end of the list.
不过，我们可以断言，如果程序不能达到第一个基线条件，那么当它到达列表末尾时至少能达到第二个基线条件。
It lends a class a name that gets it into places, and, in return, that class guarantees certain methods will be available.
它借给类一个将类放置到位的名称，反过来，该类保证特定方法将可用。
It seems almost certain that by2001the United States will no longer be a great foodexporting nation and that，if necessity forces exports，it will be at the price of belttightening at home.
几乎可以肯定，到2001年美国将再也不是一个食品输出国;如果必须出口的话，那么其代价就是美国国内人民将勒紧裤带。
We continue to believe that the World Cup is a momentous and historic occasion for SA and the continent and we are certain it will be a huge success.
我们仍然相信世界杯对南非和整个非洲来说都是一个隆重的、历史性的盛会，我们也仍然相信本届世界杯会取得巨大的成功。
Deletionists believe that Wikipedia will be more successful if it maintains a certain relevance and quality threshold for its entries.
删除主义者认为维基维持其对条目的质量和相关性将会变得更加成功。
And it is not certain that connecting the world's digital devices will be a viable market soon.
并且现在还不确定连接世界数码设备能否很快的形成市场。
While OSS often has a community that exists to offer support, it is dependent on the good will and time of others and there is no guarantee that any glitch will be solved in a certain amount of time.
尽管OSS经常存在提供支持的社区，但它依赖于良好的愿望和别人的时间，而且在一定时间内解决任何小故障是没有保证的。
Once a new version of the service becomes available, the old version is declared deprecated, indicating that it will be decommissioned after certain period of time.
服务的新版本可用后，将旧版本声明为已弃用，表明在一段时间后将使其退役。
No doubt it will be able to tell you that it will be rather pricey for you to take a certain road because it is already congested, and suggest an alternative.
它会告诉您驶入一条特别拥挤的道路将是十分昂贵的，并为您选择一条替代线路。
I am delighted to hear that your patient's age and profession make it possible, but by no means certain, that he will be called up for military service.
你的那个俘虏因着他的年龄和职业有机会被征召入伍，听到这个消息我很高兴。
It is almost certain that they will not be around, at least in their current forms, much longer.
可以肯定的是它们不会维持现状很长时间。
Nokillid is an important threshold because, if this is set to 1, it makes certain that processes owned by root will not be killed, even when the npskill threshold is reached.
nokillid是一个非常重要的阈值，因为如果它设置为1，那么它将确保不会终止root拥有的进程，即使达到了npskill 阈值。
Greenpeace, a pressure group, argues that it is impossible to be certain that carbon dioxide will not eventually leak out of the ground.
压力集团绿色和平组织(Green Peace)认为二氧化碳最终不会从地下泄漏出来是不可能的。
Will it be different if we know for certain that Death has welcomed this new life with as much joy and blessing as us?
如果我们知道死亡和我们一样满心欢喜地迎接和祝福这个生命的来临，我们是否对它会有完全不同的感悟？
It is a kind of subjective behavior that the hotel purchasing price is estimated in fact but can not fix the price at will. there should be certain scientific method and experience data as the basis.
酒店收购价格估算实质上是一种主观的行为，但并不是可以随意定价，应有一定的科学方法和经验数据为依据，不同和资产状况所运用的方法应有所区别。
Knowing that when you successfully spend a rune it will be available again in 10 seconds allows for a certain degree if repetition.
当你明白成功使用了一个符文，10秒之后又可以被再次使用，如果重复便能在一定程度上实现循环。
It is certain that we will meet many difficulties in our whole life, but we will be successful one day if we are able to never give up.
在我们的一生中我们一定会遇到很多困难，但是，如果我们能够永不放弃，总有一天我们是会成功的。
Whether the effect of international travel is positive or negative, one thing is certain that it will continue to be indispensable part for both visitors and relevant nations.
不管旅游的影响是好是坏，有一件事是可以肯定的，旅游将会继续是我们生活中重要的一部分，不仅仅是对于游客，更是对于拥有旅游资源的国家。
It is certain that more and more diseases which are incurable for the time being will be brought under control in the years to come.
可以肯定的是：越来越多的目前暂时无法治愈的疾病将在今后几年中得到控制。
Something needs to be sorted out today, and with the current celestial atmosphere, it seems certain that this in turn will lead to changes within the relationship.
在现在的天体氛围中，今天有些东西需要被整理出来，而且这一定会反过来导致一段关系的转变。
It is certain that if there are fewer people driving, there will be less air pollution.
可以肯定，如果开车的人少一些，空气污染就一定会减少。
It is certain that if there are fewer people driving, there will be less air pollution.
可以肯定，如果开车的人少一些，空气污染就一定会减少。
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