The central axis is the backbone of old Beijing, representing the highest achievement in the planning, design and construction of an ancient capital of Eastern civilization.

中轴线是老北京的脊梁，代表着东方文明古都规划、设计和建设的最高成就。

While the class may just look like students fooling around at the skate park, they're actually learning about urban planning, design and how to build a stronger community.

虽然这门课看起来像是学生在滑板公园里闲逛，但他们实际上是在学习城市规划、设计以及如何建立一个更强大的社区。