Science can be hands-on, you might be down at the lake picking up algae and studying them or something, that would be hands-on.

科学研究也是要动手的,你可能会到湖底,收集水藻并研究它们,这就是动手操作

耶鲁公开课 - 生物医学工程探索课程节选

So if we tease this apart and this is actually nice, every semester I get beat up for just how bad this thing actually is if you start really picking it apart.

因此，如果我们分解这个部分，这其实是不错的，不管事情多么糟糕,分解一下就好了。

哈佛公开课 - 计算机科学课程节选

And for me it's fun because I may not know the novel that you end up picking, and so it is a kind of challenge for me to take a novel that you've chosen and come to grips with it myself It may be one that I know.

我也觉得很好玩,因为我可能不知道你们最后选择的小说，所以对我来说,认真对待你们选的一本书很有挑战性,可能是一本我知道的书。

耶鲁公开课 - 1945年后的美国小说课程节选

So, you probably don't want to pick any point down here, because you're not getting anything by picking a point down there because you could have a better point by just moving it up here.

你不会选择这里以下的任意一点，因为你的回报不是最优的,上面这一点会使你有更好的回报。

耶鲁公开课 - 金融市场课程节选

It's rather, "Can you imagine a world in which the very thing that you really are picking out when you refer to me by the name Shelly-- namely this thing-- can you imagine a world in which that thing exists, but the thing that you're picking up when you use the word Kagan does not exist?"

而是在于,你能不能想象在一个世界里,你用薛立这个名字,指的那个人,也就是这个东西,你能不能想象在一个世界里某个东西存在,而你用卡根这个词,所指的这个东西却不存在

耶鲁公开课 - 死亡课程节选

Remember, you've got to keep track of the sign of acceleration, so if you're picking up speed towards the ground, a is negative, so it will be g plus a, but a is a negative number.

记住,一定要注意加速度的符号,所以当你加速下降的时候,a 是负的,还是 g 加上 a,但是 a 是负数

耶鲁公开课 - 基础物理课程节选