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。
It was pretty certain that the enemy would not be able to understand the code talkers.
十分肯定的是敌人无法理解密码员的意思。
On occasions it is the fear that certain disclosures may be unacceptable to family or friends that motivates an individual to seek professional help.
有时，正是因为担心某些信息披露可能会让家人或朋友无法接受，才促使个人寻求专业帮助。
It is remarkably, however, that Seneca himself never mentions the plays, since there are certain passages in them that could be used to illustrate points of his philosophy.
然而，值得注意的是，塞内加本人从未提及这些戏剧，因为其中有些段落可以用来阐明他的哲学观点。
The third, and most potent limitation is that it is not possible to be certain that the infant's response was due to the stimulus presented or to a change from no stimulus to a stimulus.
第三也是最有力的限制在于婴儿做出的是面对刺激的反应，还是从受到刺激到没受到刺激的变化，这是无法确认的。
It has to be extensible, in the almost certain case that more features are added to the program.
在向程序添加更多功能时(这几乎是必然发生的情况)，它必须是可扩展的。
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。
It might be inappropriate to perform certain functions on a node if that node does not support compatible capabilities.
如果这个节点不支持兼容能力，在其上面执行某些功能可能是不合适的。
However, others say that while perfectionism might seem to be advantageous in certain situations, it always has a dark side that inevitably rears its head.
然而，其他人说尽管完美主义或许在某些情况下是有益的，但它的阴暗面却不可避免的会出现。
Validity is much more rigorous; it allows you to insist that certain data be present and be structured in a certain way.
有效性是非常严格的；它允许您坚持以某种方式来表示和结构化某些数据。
It is also important that the transaction manager be able to handle certain resource manager failures, and as such continue operating should this situation occur.
事务管理器要能够处理某些资源管理器的故障，而且发生这种情况时，事务管理器还要能够继续操作，这点也很重要。
For it was the king's commandment concerning them, that a certain portion should be for the singers, due for every day.
王为歌唱的出命令，每日供给他们必有一定之粮。
You can also release the profile from time to time, but be aware of the consequences: it creates a checkpoint that prevents certain changes, that version cannot be deleted, and so on.
您还可以不时地发布这个概要文件，但是要注意所产生地后果：它创建一个阻止某些变更的检验点，那个版本不能被发布，等等。
Okay, well in that case if clearly and distinctly perceiving it to be true is enough to make me certain in this case then I can apply that as a general rule.
好吧，在那种情况下如果能清楚明白地感知到它的真实，足以使我在此种情况下得以确认的话，那么接下来我就能将其应用为普遍规律了。
Because if that happened, particularly in our industry, it is almost certain it would be taken over.
因为如果这种事情发生了，尤其是在我们行业，基本上就是行业垄断了。
He has suggested that extraterrestrials are almost certain to exist - but that instead of seeking them out, humanity should be doing all it that can to avoid any contact.
他认为外来的威胁几乎肯定存在-但是我们人类要做的不是把他们找出来，而是应该避免任何和他们接触的可能。
On the other hand, it may be served by a certain application in the baseline, but that application has been changed in a target architecture (and not in another target).
另一方面，它可能是由基线中的特定程序来服务的，但是程序可以在目标结构中发生变动（不是在另一个目标中变动）。
A landmark can be configured such that it matches certain application states and that the container component to which it belongs can react to these states.
地标可以被配置为匹配某种应用程序状态，并且它所属的容器组件可以针对这些状态作出反应。
The system can also back up certain types of data to the Internet, ensuring that it won't be lost even if something happens to your PC.
同时，该系统还支持将某些类型的数据备份到因特网上，以确保当你的PC发生某些异常时这些数据不会丢失。
It used aliens in place of actual species to be certain that the participants could not draw on prior knowledge.
它用外星人来取代实际实际物种，是为了确信参与者不能利用先验知识。
This task was meant to be similar to learning about animal species in a biology lesson. It used aliens in place of actual species to be certain that the participants could not draw on prior knowledge.
这项任务旨在模拟生物课上学习动物种类的过程，它之所以用外星生物代替实际物种，是为了确保测试者不会凭借其原有的知识进行记忆。
But he argues that it is far from certain that the new finding dethrones its claim to be the first bird.
不过他质疑道，这远远没有达到“新发现就可反驳‘郑氏晓廷鸟’是第一只鸟”的猜想的地步。
This class usually gets its data from a filesystem directory that contains a certain set of files that follow a certain structure, but it doesn't absolutely have to be a directory.
通常，这个类获取数据是通过一个包含遵循某种结构的某一文件集合的目录，但并不一定是一个目录。
Once the firm's problems became undeniable, management asserted certain that it would be acquired.
一旦无法否认公司的问题，管理层又断言肯定有人会收购公司。
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 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。
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