"A sense that a step is made to release prisoners, and the government is trying to build some bridges in certain areas, but at the same time, the revolutionary side is given its moment in which Fidel Castro is able to excoriate the United States and to continue to lay out the revolutionary credentials, or Cuba's role as a leader of the Third World."

VOA: standard.2010.07.13

It began to infiltrate other disciplines and was in general a high-spirited horse for that certain period of time.

它逐渐渗入到其它学科,总之是那个时代的一匹黑马。

耶鲁公开课 - 文学理论导论课程节选

It's actually better to spend a certain amount of time just keeping your body in good condition

其实花一定时间保持身体的良好状态更好，

健康生活 - SpeakingMax英语口语达人

In certain ways, it's a beautiful poem and a grotesque one at the same time.

从某种意义上来说，这诗很美,但也很丑陋。

耶鲁公开课 - 现代诗歌课程节选

And so the stories couldn't have been simple inventions, and that began a new phase in the story. And, again, to repeat what I said last time, there were certain stunning physical resemblances between what Homer said and what we could see.

所以,神话传说并不只是人们的空想,这样事情就有所不同了,同时,我重复下我上次所说的,《荷马史诗》所描述的世界,在当今确有令人吃惊的实物证据

耶鲁公开课 - 古希腊历史简介课程节选

Another point about this sort of ambivalence about being czar is that he often made a point of choosing his most trusted advisors from the ranks of commoners and gave them the right to become titled after a certain amount of time after a certain amount of time in the royal bureaucracy.

他作为沙皇矛盾的另一点是,他最信任的顾问,常常是从普通民众中选出来的,而且经过一段时间后,他会在皇家官僚机构中给他们一个头衔

耶鲁公开课 - 欧洲文明课程节选

One is time, that I think it takes certain amount of time to shed the thoughts, the anxiety in everything else.

第一是时间，要想,摆脱一些想法，摆脱焦虑，是需要一定的时间的。

普林斯顿公开课 - 人性课程节选

Obviously-- and that's a bad way of saying it, I said constant the previous time-- in the linear case, it's subtract by certain amount.

这么描述很不准确，我之前在，线性算法中也说了常数,它是每次减少固定的量。

麻省理工公开课 - 计算机科学及编程导论课程节选

And they have to put in a certain amount of work time, working at the Food Co-op.

他们得抽出一部分时间去食品供销社工作。

布鲁克林的变化 - SpeakingMax英语口语达人