They were not charged with the more serious crime of espionage, so the extent of their success as spies is not clear.

VOA: special.2010.07.10

The harm shouldn't be so serious that it elicits strong negative emotions like fear, grief or pity.

但这种伤害不会很严重,不会造成消极情绪，如恐惧，悲伤或怜悯。

耶鲁公开课 - 心理学导论课程节选

You turned so serious when the corpse was carried past us; are you afraid of death?

尸体被运送经过我们时，你是那么严肃;,你害怕死亡吗？

耶鲁公开课 - 死亡课程节选

And again, Americans all around the country took note of this quiet,serious man who did such effective work in so many different kinds of situations.

VOA: special.2011.02.10

It's contracting so the Fed is trying to prevent a serious recession by cutting interest rates; they've been cutting them rapidly.

它在减小,所以美联储正在试图阻止一个因为利率缩减,而产生的严重的经济衰退；,但是他们最近一直在降低利率。

耶鲁公开课 - 金融市场课程节选

It is why they dismissed the results from 83 polling stations so of course we have concerns about very serious allegations of fraud."

VOA: standard.2009.09.11

It's much more serious and strange. Okay. So that's enough on Eliot.

那个更严肃更奇怪，好吧，关于艾略特的讨论就到这。

耶鲁公开课 - 1945年后的美国小说课程节选

So we hope the government takes serious actions to fulfill those commitments in the very near future,".

VOA: standard.2009.10.25

So, all right, so now we're getting serious.

现在考虑的问题很重要了。

麻省理工公开课 - 热力学与动力学课程节选

"Now,the degree which will have on the peace process and other things which are sort of the hard facts of the Middle East,is something else, altogether,as obviously there is a very serious problem with the Israeli government and so on.

VOA: standard.2009.05.09

So a serious thing, a lot of people get put off by notation, it looks scarier than it is, there's nothing going on here except for notation at this point.

很多人面对符号往往都望而却步,看起来它比这个更可怕,而在这里,其实仅仅是符号而已

耶鲁公开课 - 博弈论课程节选

"Perhaps it is time for the U.S. to talk directly to the Israeli public and make it clear that they are serious and this old game that we've been playing for many years of this so-called peace process that does not lead to anything is over,".

VOA: standard.2009.06.09

Treasury bills are for serious investors and so they don't come in small denominations.

国库券是面向专业投资者的,所以他们不以小面值出现

耶鲁公开课 - 金融市场课程节选

He also offered some tough talk. "I emphasized that this has to be a point in time in which we begin to write a new chapter based on improved governance, a much more serious effort to eradicate corruption, joint efforts to accelerate the training of Afghan security forces so that the Afghan people can provide for their own security,".

VOA: standard.2009.11.02