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。
As she put it, it is certain that the painting "is not a Jackson Pollock."
正如她所说，可以肯定的是画“绝对不是杰克逊·波洛克画的”。
Though it is unclear as to what their aims are, it is certain that they must be stopped at all costs.
尽管还不清楚他们的目的究竟是什么，但是可以确定的是必须不惜一切代价阻止他们。
Whether you agree with the evidence or not, it is certain that there has been a global shift in thinking.
不管你是否同意这个证据，全球正在转变思维这一点是肯定的。
From tests on his teeth, it is certain that he spent his childhood in central Europe.
从对他牙齿的检验来看，他的童年一定是在中欧度过的。
No marriage was possible between them; not even that of souls; and yet, it is certain that their destinies were wedded.
在他们之间是不可能有什么结合的，甚至连灵魂的结合也不可能，而他们却又相依为命。
But, although it is certain that some things will go wrong in Libya, it is far from certain that everything will go wrong.
虽然可以肯定的是在利比亚有些事情会出问题，但是，远远不能确定所有事都会出问题。
Yet it is certain that the power to produce this delight, does not reside in nature, but in man, or in a harmony of both.
然而，可以肯定地说，这欢悦的力量不仅源于自然本身，它存在于人，或者说，存在于自然和人的和谐中。
I don't know, but it is certain that as the world develops its global economy, the condition of one country will certainly have a big impact on many others.
我也不清楚，但肯定的是随着经济的全球化，一个国家的经济状况无疑会对其他国家造成很大的影响。
According to the analysis of products in photooxidation and dark oxidation, it is certain that the oxidation in our condition proceeds through a free radical mechanism.
根据蒎烯光氧化和暗氧化反应产物的分析，可以肯定蒎烯在本工作实验条件下的氧化反应是通过自由基机理而进行的。
It is certain that she will go.
她肯定是要去的。
It is certain that he is honest.
他是个诚实的人是确定无疑的。
It is certain that it is not your fault.
可以肯定的是这不是你的错误。
It is certain that two and two make four.
二加二等于四是确信无疑的。
It is certain that he will agree with us.
他会同意我们的意见，这是肯定的。
It is certain that he will win the match.
毫无疑问他会赢得比赛。
It is certain that he will get on well with them.
可以肯定，他会同他们相处地很好。
It is certain that Mr. Black will support your plan.
确定无疑的是，布莱克先生会支持你的计划。
It is certain that they have fewer chances to get ill.
当然他们生病的机会也会变少。
It is certain that you will think the red one is heavier.
当然你会认为红色的更重。
It is certain that communication skill is necessary on job.
沟通技能在工作上肯定也是必须的。
It is certain that people will receive happiness in the end.
这样的话人们最终肯定能获得幸福。
It is certain that a clean city can give people a good impression.
一个干净的城市肯定能给人们一个好的印象。
It is certain that fuels like coal and oil cause a lot of pollution.
煤和石油这类燃料能造成大量的污染，这是肯定的。
It is certain that he will hand over his business to his son when he gets old.
他老的时候，一定会把生意移交给他的儿子。
It is certain that he will hand over his business to his son when he gets old.
他老的时候，一定会把生意移交给他的儿子。
应用推荐