urban garden的用法和樣例：
例句
- The source of the urban plants was multiplex, and most of them belonged to the Tropical-Asia distribution.
城市園林植物種的來源多樣化，以熱帶亞洲分佈類型最多。 - In the second part ,the author recommends the current situations of Shanghai urban afforesting and greening and urban forests.
第二部分介紹上海城市園林綠化和城市森林的現狀。
