A model fort is the only structure in the park built in the exact place as the first building.

VOA: special.2009.08.17

We talked about the structure of DNA, how it works in terms of a physical chemical model of the DNA molecules.

上节课我们讲了DNA的结构,从理化模型的角度讲了,DNA分子是如何工作的

耶鲁公开课 - 生物医学工程探索课程节选