Let's talk sort of at a more tactical level, about what do we want you to know in this course.

我们来讲一些策略层面上的目标，关于我们希望你们从课程中学到什么。

麻省理工公开课 - 计算机科学及编程导论课程节选

Let's think about it in terms of the local level and then perhaps the national and international level.

让我们来基于本地,全国，全球来想一想。

麻省理工公开课 - 媒体、教育、市场课程节选

Here,the first level: do we focus on weaknesses, which is the disease model,say let's get rid of weaknesses?

第一个层次：,我们是否重视缺点，也就是疾病模型所说的我们要摆脱的缺点？

哈佛公开课 - 幸福课课程节选

Let's listen to John Kander sit on one pitch level and then suddenly raise the whole thing up.

我们听到约翰·肯德尔选择了一个音高,然后突然升高了

耶鲁公开课 - 聆听音乐课程节选

So, let's look at where this comes from with an energy level diagram here.

让我们从这个能级图,来看看怎么得到这个结果的。

麻省理工公开课 - 化学原理课程节选

If you want to get some input from the user, my God I don't want to have to program it to low level zero and 1 just to get keys from the keyboard; please let there have been someone who does that for me and indeed there are an increasingly sophisticated options that you can pull off the shelf.

如果你想获得一些用户的输入数据，我的上帝,我可不希望在键盘上敲入0，1的低水平方式来编程;,希望有个人能帮我做这件事吧,但是现有的选择,也变得日益复杂了。

哈佛公开课 - 计算机科学课程节选

The question was how many rabbits do you have at the end of a year? At the end of two years? At the end of more than that number of years, and so. We can do this with the following level definition. We're going to let pairs of 0, the number of pairs at month 0, actually it would not be it would be 1.

在下一个月末的时候让我们假设,这2只小兔子也有了后代,同样是一公一母,问题是一年后你会有多少只小兔子？,两年后呢？更多年后呢？,我们可以用接下来的等级说明来解释，在第0个月有0对兔子。

麻省理工公开课 - 计算机科学及编程导论课程节选

The disease model,the optimum level is the zero: let's just be Ok; let's just not hurt.

对疾病模型而言，最优水平是零：,我们都平平安安，别受伤就好了。

哈佛公开课 - 幸福课课程节选

So let's transition from these lower level details.

所以，让我们从这些低级别的设备中过渡出来。

哈佛公开课 - 计算机科学课程节选