We can't just smash things and start all over, we have to design a system of risk management.

而不是简单地打破一切再重新来过，我们应当设计一个好的风险管理体系。

耶鲁公开课 - 金融市场课程节选

That would be a bad design for our nervous system where we want to use cells over and over again, so they're able to recover from this change in potential.

这样的神经系统设计可不怎么样,我们想要能重复使用的神经细胞,所以它们具有从电势变化中恢复的能力

耶鲁公开课 - 生物医学工程探索课程节选

Just in a couple of minutes, I want to give you a little bit more sense of what educational design is and just a brief over view of the course work.

我想用两分钟，简单介绍一下教学设计,再简介一下课程内容。

哈佛公开课 - 幸福课课程节选

You can imagine that there are many requirements that a device like this has to meet in order for it to be a good artificial hip and we'll talk about those and how the design of these has changed over the years and what we can expect in the future.

你可以想象,这种装置对技术要求极高,这样它才能成为,一个好的人工髋关节,我们会讲到这些,以及这些年来这项技术的设计有哪些改进,在未来会有怎样的创新

耶鲁公开课 - 生物医学工程探索课程节选