| 1 | It's our civic duty to plant trees. | |
| 2 | Please write about the effect of tree planting on air in a city. | |
| 3 | But I doubt whether afforestation alone will solve the problem. | |
| 4 | An arrangement of trees or shrubs planted in widely spaced rows. | |
| 5 | By comparison, activities like tree-planting draw large numbers of people of all ages. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
