One week after U.S.Secretary of State Hillary Clinton told Congress that the Obama administration will work with lawmakers to impose "crippling" sanctions against Iran, Senate lawmakers introduced legislation designed to help accomplish just that.

VOA: standard.2009.04.28

But we've just introduced it, so let's go back to the class notes and explain why this is the correct answer.

但是由于我们刚刚开始介绍它，因此让我们回到课堂讲义来解释一下,为什么这个是正确答案。

麻省理工公开课 - 化学原理课程节选

If you just introduced this polio virus, which you could make in large quantities into people now, you would be causing polio.

如果你直接接种脊髓灰质炎病毒,将大量的病毒直接接种到人体,就会引起小儿麻痹症

耶鲁公开课 - 生物医学工程探索课程节选

The principle of monism had just introduced itself in England around the mid-1640s, around, it's been argued, the time that Milton's writing Areopagitica, and it met with all sorts of opposition.

一元论原理在17世纪40年代中期,弥尔顿写作《论出版自由》的时候,刚刚传到英格兰，即遭到各种反对。

耶鲁公开课 - 弥尔顿课程节选

And so yes, the signal that this field of discursivity is on the table is introduced by the name of the author but it remains just a name.

所以的确，这种公开的散漫性的信号,就通过作者的名字被介绍出来，而且也仅仅只是个名字。

耶鲁公开课 - 文学理论导论课程节选

But to translate this now to a language C, you've got some curly braces, you got an if, some parentheses, but now we're just building on some of the syntax we introduced before.

如果把它转换成C语言，你又会看到一些大括号啊，if啊，圆括号啊等等，我们只是借助,之前学过的语法规则。

哈佛公开课 - 计算机科学课程节选

So I just have to see, oh, here's a D, let me keep looking, D here's an A, keep looking here's a V, here's an I, here's a D and yet, and this is one tidbit we introduced a week or so ago, how do I now know if I'm just given the address of the start of the string where the end is?

我只需要看到，哦，这里是一个D，让我接着往下看，这里是A，接着这是V，这是I，这是,然而，这是我们一周以前介绍的花絮，如果你给我一个字符串开始的地址,我怎么知道它什么时候结束？

哈佛公开课 - 计算机科学课程节选