单词certain
adj.: 肯定；确定；确信；无疑
pron.: （不提及人或事物的名称时用）某些
网络: 确定的；肯定的；一定的
确实；确定；肯定:
that you can rely on to happen or to be true
确信；确定；无疑:
firmly believing sth; having no doubts
（不提及细节时用）某事，某人，某种:
used to mention a particular thing, person or group without giving any more details about it or them
（与人名连用，表示说话者不识其人）某某，某位，一位叫…的:
used with a person"s name to show that the speaker does not know the person
轻微的；微小的；显而易见却难以描述的:
slight; noticeable, but difficult to describe
肯定；确定；无疑:
without doubt
弄确实；弄清楚；弄明白:
to find out whether sth is definitely true
确保（做某事）:
to do sth in order to be sure that sth else will happen
不算年轻的；年纪不轻的；中年的:
if you talk about a person beingof a certain age , you mean that they are no longer young but not yet old
（不提及人或事物的名称时用）某些:
used for talking about some members of a group of people or things without giving their names
某个
某几个,某些
捉摸
可靠;理所当然的;实实在在的
规定
相信,确信,深信,自信的
必然〔后接不定式〕;有把握,确信〔只用作表语〕
有些,一些
(数量、日期等)已确定的;(证据等)确凿的,无疑的;(知识、技术等)正确的,可靠的
肯定,断定;吃准,有把握;十拿九稳,确定无疑的
某一;一定;特定的
某,某一;某种,某些;相当的,一定程度的;(某种)不好意思说出来的〔只用作定语〕
adj.sureconvincedevidentdependableparticularpron.somea number ofa fewseveralselected
adj.unsureuncertainpron.all
The only way of avoiding this problem would be if, for some reason, the stars did not shine before a certain time.
唯一避免这种问题的办法是，因为某些原因，星体在一端时间以前是不发光的。
A PHP function that can output how much a user would need to donate to get a certain amount of GD.
一个PHP函数，可以输出多少用户需要获得捐赠一定数额的GD。
Well, not until a certain git by the name of Lockhart took over as Defence Against the Dark Arts teacher, at any rate.
呵呵，直到有天有个叫洛哈特的饭桶当了黑魔法防御术老师，情况就不同啦。
As the modern logistics develops to a certain stage, Logistics Park is beginning to be produced.
物流园区是现代物流发展到一定阶段的产物。
This overseas experience can be extended by up to a year, allowing students to complete an MBA at certain academic partners.
海外经历可以延长至一年，允许学生在学术伙伴处完成工商管理硕士学位。
Nutritional deficiencies do seem to be the cause of certain cases of low testosterone.
营养不良看来确实是导致某些病例睾丸激素偏低的原因。
And then, like every leader, they"ve got to have a certain sort of pizzaz that gets people excited.
就像所有领导人，他们必须有能振奋人心的特质。
So, if you have recombination at a certain frequency, I can say exactly how much that helps or hurts the fitness of the population.
因此，如果你获得一定水平的重组率，我可以准确得出它在多大程度上促进或损害人口的适应性。
After a certain number of points, the players changed round so that neither could benefit unduly from the wind or the position of the sun.
达到一定比分后，运动员就互换场地，这样双方都不致由于风向和阳光的位置而独得优势。
Interestingly enough I also discovered what appeared to be uncensored internet available at a certain library in Tehran.
有趣的是，我发现德黑兰某些图书馆的计算机网络，并没有受到过滤审查的机制的影响。