Well, if you're implementing a computer that needs to represent information now all you need is something like electricity which can be on or off, on or off.

好吧，如果你正用一个电脑,来表现表达传递信息的功能,你就需要,像电开关一样的物体。

哈佛公开课 - 计算机科学课程节选

And so I joked, badly, I'll agree, at the end of last lecture, that we can just stop now, go straight to the final exam, because this is all you need to know.

所以我在上次演讲快结束时说了个拙劣的笑话，我会同意我们可以到此为止,直接进行期末考试，因为这些是你们需要知道的所有内容。

麻省理工公开课 - 计算机科学及编程导论课程节选

But for right now, all you need to know is that all of these generals, although they were Macedonians and spoke Macedonian and not themselves Greek, but they had, just like Alexander, they had adopted Greek language, Greek culture.

不过目前，你们只要知道所有四位将领，虽然都是马其顿人，说马其顿语,不是希腊人，但是他们和亚历山大一样，使用希腊语，希腊文化。

耶鲁公开课 - 新约课程节选

Right now, in kinematics, this is all you need.

目前,在运动学中,这些就足够了

耶鲁公开课 - 基础物理课程节选

But for now all you need to know is - that these four different kingdoms-- one was where we now have Greece, another one was where Syria is, another was Egypt, and then there was another further north, but that's not as important for us.

不过目前你们只需要知道,这四个不同的王国-,一个是当今的希腊，一个是当今的叙利亚，一个是埃及，还有一个在更北面的地方，不过对我们来说不是很重要。

耶鲁公开课 - 新约课程节选