Studies have shown that the fewer medicines a person has to take the more likely he or she will take them.

VOA: special.2009.04.08

All right? The first one is, that test has to involve-- shouldn't have to, the value of some variable.

好不好？第一件事是，循环开始的测试必须必须-不是一定，一些变量的值。

麻省理工公开课 - 计算机科学及编程导论课程节选

So essentially it's something that has to come from within the community, with the support, but it really is an evolution.

所以，从本质上来说，人权观念的改变,必须是在帮助下的群体自发觉悟，而且是一种发展。

普林斯顿公开课 - 人性课程节选

Then a climber has to try to move sideways as she moves forward to try to avoid hanging completely upside down.

VOA: special.2009.12.09

When we have an isolated system, the criterion that determineswhether something happens spontaneously is the entropy has to increase.

对于孤立系统,决定一个过程是否自发发生的判据为：,熵必须增加。

麻省理工公开课 - 热力学与动力学课程节选

But Mr.Ker-Lindsay says Serbs are conflicted because they understand that their country's future has to be a part of Europe.

VOA: special.2011.05.28

There is no border in the West. So Sal has to reinvent one, and in some sense it's a border of time.

西部里本身没有什么分界线，所以萨尔必须新发明一个，他所分的界限可以说按照时间来的。

耶鲁公开课 - 1945年后的美国小说课程节选

In the song,a man named Charlie has to ride forever because he does not have enough money to leave the train.

VOA: special.2010.01.25

If the element of surprise is to become absolutely central and paramount in the reading process, the gap has to get bigger.

如果“惊讶“元素在阅读过程中是,绝对中心，至高无上的，那么这个间隙必须会更大。

耶鲁公开课 - 文学理论导论课程节选

"I don't understand. How can they have no record of her being there." "There has to be some explanation."

VOA: special.2009.06.12

Ritual impurity also defiles or renders impure sancta, and so it has to be kept separate from sancta.

仪式上的不洁也会玷污或弄脏圣所，因此它必须远离圣所。

耶鲁公开课 - 旧约导论课程节选

But then Micky gets one more chance in the ring,under one condition: his family has to stay out of his career.

VOA: special.2011.02.21

So let's actually let you try another example of solving a problem that has to do with one of the spectrums.

下面请大家来看一下另一个例子,这次是一个需要大家解决的关于光谱的问题。

麻省理工公开课 - 化学原理课程节选

The rain harvesting systems mean that a family member no longer has to walk long distances to get water.

VOA: special.2009.07.27

And that means radiation of energy, and that energy has to come from inside the atom itself.

意味着有能量的辐射，这些能量来自于原子本身。

麻省理工公开课 - 固态化学导论课程节选

But it also has to be careful, or people could start to worry about an invasion of privacy.

VOA: special.2010.05.28

The book has to be tested. It has to be tried by the public, by a reading public, before it can be censored.

这本书必须检测，它必须被大众检测，在它被控制之前。

耶鲁公开课 - 弥尔顿课程节选

Greece has to cut thirty billion dollars as part of a bailout deal with the European Union and the International Monetary Fund.

VOA: special.2010.05.07

Meaning in Frost poems, as in the world that they evoke, has to be interpreted every day.

他的诗中的意义，就像世界唤起的一样，不得不每天都理解一遍。

耶鲁公开课 - 现代诗歌课程节选

The mother has to save Bill from getting punished and,in the process, she teaches her husband a lesson.

VOA: special.2009.05.04

And even that's not sufficient, the types of questions One has to really ask really are much more brand.

就算那样还不够,人们要问的问题实际上更多。

麻省理工公开课 - 媒体、教育、市场课程节选

It has to be whole to grow. Ginseng needs a place where it will not get much sunshine.

VOA: special.2009.04.07

It not only does something, as we'll see, it also gets something and it has to hand it back to me.

它不仅要做好自己的本分工作，还要将获取到的值返还给我们。

哈佛公开课 - 计算机科学课程节选

The issues must be treated carefully, or they will be difficult and painful if an elected official has to deal with them.

VOA: special.2009.12.06

You have a very, very changing demographic situation in the American South and its political culture has to respond to that.

你可以想象,当时的美国南方,人口流动是非常厉害的,所以当时的政治文化必须做出相应的调整

耶鲁公开课 - 美国内战与重建课程节选

I go the most direct way. Anyone who eats crow has to admit a mistake or defeat.

VOA: special.2010.06.13

But still, it's crucial to understand, doing the readings is an important part of learning what this course has to offer.

但仍旧，它很难理解，做课外阅读是学习很重要的一部分,对于这门课所提供给你们的内容而言。

耶鲁公开课 - 死亡课程节选

He says the Navy has to choose submariners from the widest possible group of skilled service members.

VOA: special.2010.05.21

Doesn't respond as well to killed vaccines, and that's why the Salk vaccine has to be injected at a high dose.

但却对灭活的疫苗没有那样强烈反应,这也是索尔克氏疫苗为何,必须大剂量注射的原因

耶鲁公开课 - 生物医学工程探索课程节选

Let me talk about what Hobbes has to say for us today, we who have in many ways become Hobbes' children.

接下来我要谈谈,霍布斯到底给我们，某种意义上讲,也就是他的继承者，留下了什么。

耶鲁公开课 - 政治哲学导论课程节选