afforestation of city的用法和样例：
例句
- The soil seed bank of urban green land contains some potential populations, some plants can be used for city afforestation.
城市绿地土壤种子库中蕴藏着一些潜在种群，有些植物种可以用于城市绿化建设。 - Be going to treasure flowers and plants trees , not to destroy urban afforestation , participate in and the activity afforesting tree planting actively.
要爱护花草树木，不破坏城市绿化，并且积极参加绿化植树活动。
