Even in real recipes, you have things like, if needed, add sugar.

就算在真实的菜谱当中，你也需要做一些比如加糖之类的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选

and I knew if I wanted to be good, as good as I wanted to be, I needed to come here.

而且我知道，如果我想变得更好，变得和我想的一样好，我就得到这里来。

和纽约的留学生 - SpeakingMax英语口语达人

Partly because I think it's a good exercise, but also I don't want this class to be a class where you sit there, with your cup of Willoughby's coffee if needed to keep awake, and you watch me solve models because that's not how you learn.

一方面是由于我认为这是个好的锻炼机会,此外,我也不希望这个课程,变成你们坐在这,用威洛比咖啡来保持清醒,一边看我解决问题,因为你们不应那样学习

耶鲁公开课 - 博弈论课程节选

If it is a lab it will include the lab instructions and often all the tools if there are software tools that are needed for that lab.

如果是实验室，将会包含实验指导,如果需要软件工具的话,还会提供工具。

麻省理工公开课 - 媒体、教育、市场课程节选

They wanted the roads for their Army, just like the US Interstate system was originally created in case the Army needed to be moved across the country very quickly if the Soviets attacked.

只关注军队用路，就好像美国州际公路系统,原本是为了苏联攻击时,陆军能快速穿越国家而建的。

耶鲁公开课 - 新约课程节选

It didn't-- if you needed more time to get some business done you'd have to borrow, but you'd only have to pay 1% a year.

如果你需要更多时间来完成业务,你需要借款,而只需付1%的年利息

耶鲁公开课 - 金融市场课程节选

Even if that beaker had all the nutrients that skin cells needed they wouldn't survive very well in solution, they tend to need to be stuck to a surface in order to survive.

即使供给它们所有所需的养分,它们也不能在溶液中正常存活,皮肤细胞倾向于贴壁生长

耶鲁公开课 - 生物医学工程探索课程节选

So if you were starving and you really needed energy, that is your body needed calories, it needed usable energy in order to survive, the broccoli's not going to do you much good and the brownie would be terrific.

假如你快饿死了,实在需要能量,那是你的身体需要卡路里,身体需要可利用的能量去支撑,花椰菜这时就没多大帮助了,布朗尼蛋糕才是首选

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, for example, if we needed to figure out the electron configuration for titanium, 4s2 it would just be argon then 4 s 2, 3d2 and then we would fill in the 3 d 2.

所以举个例子,如果我们需要解出钛的电子构型，它会是Ar然后，然后我们填充。

麻省理工公开课 - 化学原理课程节选