A team at the University of the District of Columbia in the nation's capital has created a garden on the top of one school building.

美国华盛顿哥伦比亚特区大学的一个研究小组在某学校的楼顶建造了一座花园。

Kristina Campbell is a law professor at the University of the District of Columbia.

克里斯蒂娜·坎贝尔 (Kristina Campbell) 是哥伦比亚特区大学的法学教授。

This rooftop garden on the campus of the University of the District of Columbia includes a variety of vegetation to help absorb excess rainwater and grow food at the same time.

哥伦比亚特区大学校园内的这个屋顶花园种有各种植被，有助于吸收多余的雨水并同时种植蔬菜食物。