Then they began the long and difficult trip back down.

VOA: special.2010.06.30

I'm not going to have you work long hours on difficult problems to be submitted and then graded.

我的作业不会让你们花费大量的时间,去钻研很难的问题，然后交上来让我打分。

麻省理工公开课 - 固态化学导论课程节选

There's not really plural form of verbs in Korean, so then again it's also difficult.

韩语中真地没有动词复数形式，所以这一点也比较难。

韩国人经常犯的失误 - SpeakingMax英语口语达人

So when you talk to class four, he says,then it is difficult to teach the little kids in class one.

VOA: standard.2010.02.25

Now if I am difficult with the user positive1 and I compile make positive1, and I then run positive1.

现在如果我和用户有点不和谐,我编译正positive1，然后运行。

哈佛公开课 - 计算机科学课程节选

It's sort of an intimate thing,you know. It's the dichotomy of having comfort in singing about certain things or saying things within a song, but then elaborating further seems difficult for me."

VOA: standard.2009.04.19

See you Friday. We'll finish on calorimetry and thermochemistry and then we'll start in on one of the really most difficult topics that we'll deal with all semester, which is a second law and our special function that

好，我们周五见,我们会讲完量热法,和热化学的内容，然后我们会开始,讲这个学期最难的话题之一,第二定律以及我们

麻省理工公开课 - 热力学与动力学课程节选

After difficult and lengthy negotiations, the Southern African Development Community's mediator, then-South African president Thabo Mbeki, shepherded the three leaders into concluding the agreement, which produced a government of national unity in February of this year.

VOA: standard.2009.09.15

And then, that's kind of where things got a little difficult.

然后事情就开始,变得有点困难了。

普林斯顿公开课 - 人性课程节选

"For me,I think it was more difficult because I dealt with the guilt of missing my child, having him so far away, then always trying to get home on the weekends to see him, as well as keeping up with school and remaining active,"

VOA: standard.2009.12.04

And if they're a premade salad then it would be even more difficult because you're not constructing it yourself, so it's hard to uses based on these sort of things.

如果那是预制色拉,就更麻烦了,因为那不是你做的,就很难进行统计

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"Because there are only a couple of previous records of eruption at this particular volcano, it is difficult to judge either how long the activity will go on there, or how long the volcano might then be dormant before it goes active again."

VOA: standard.2010.04.15

If it were all the things that it's not, or if it were identical to all the things that somehow or another it's not, then I would be in a very difficult situation because I wouldn't have any means of knowing it in particular.

如果一件事就是它自身的反面，或者和其他的事物没有区分之处,那么我们，就很难认识它,因为我们没有办法认识它。

耶鲁公开课 - 文学理论导论课程节选

"It is an age-old problem in politics, where in general in American politics, the candidate who appeals most to the most fervent members of the party wins the primary and then often has a very difficult time appealing to the broader electorate."

VOA: standard.2010.05.19

You put a child on one side of the mountains and you ask him to draw it, and a four- or five-year-old can do it easily, but then you ask him to draw it as it would appear from the other side and children find this extraordinarily difficult.

你让孩子在模型的一边,要求他把自己看到的三山模型画出来,四五岁的儿童便能够轻易做到,但是,如果你要求儿童画出,从模型另一边看过去的样子,儿童就会觉得非常困难

耶鲁公开课 - 心理学导论课程节选

So change is difficult, but then we went over and said, "Well, Marva Collins creates change.

改变是困难的，但我们又说，“Marva，Collins实现了改变。

哈佛公开课 - 幸福课课程节选

And then watch what happens to the prose style and the difference in tone: I find it most difficult to express with adequate force that flash, that shiver, that impact of passionate recognition.

然后看看那些散文风格,及语调发生的改变：,我发现要恰如其份地表现一刹那的那种颤栗，那种动了感情发现的碰撞，真是最为困难。

耶鲁公开课 - 1945年后的美国小说课程节选

who, you know, have a very strong, difficult-to-understand accent, then they would say that

他们有很重的、难以听懂的口音，然后他们会说，

优雅的英式英语 - SpeakingMax英语口语达人

He says, "They aren't authors. They're founders of discursivity," and then he grants that it's kind of difficult to distinguish between a founder of discursivity and an author who has had an important influence. Right?

他说：“他们不是作者，他们是散漫性的创始人“,然后他认为很难区分,究竟散漫性的创始人和作者,哪个的影响更重要，对吗？

耶鲁公开课 - 文学理论导论课程节选

Okay, right, so if you're actually making food and you're creating some of a recipe then it's very difficult to know exactly the portions that go in when you eat the final food product that comes from it, so that's right. How many of you--go ahead.

对的,所以如果你自己做饭,你会有自己的一套食谱,你很难了解最后的成品中,原成分的精确含量了,所以就是那样,有多少人,你说

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Then I called GetInt, which is going to handle the difficult users for me.

然后我调用GetInt，它将,为我处理一些麻烦的用户。

哈佛公开课 - 计算机科学课程节选