| 1. | The streets have been swept free of leaves .
街上的落叶已打扫干净。 |
| 2. | The falling leaf spiraled to the ground .
落叶盘旋着飘到了地上。 |
| 3. | A sharp wind herded the fallen leaves into piles .
一阵冷风把落叶卷成堆。 |
| 4. | Most trees are denuded of their leaves in winter .
许多树木冬季都要落叶。 |
| 5. | The undercomposed litter forms a nutrient bank .
未分解的落叶层也会形成一个养分库。 |
| 6. | The wind winnowed the fallen leaves .
风吹散了落叶。 |
| 7. | The leaves are falling in profusion .
落叶纷纷。 |
| 8. | The tree has dropped its leaves .
树已落叶。 |
| 9. | Litter breakdown or fragmentation is due to the litter fauna .
落叶层粉碎的原因在于落叶层的动物相。 |
| 10. | Last year's sheddings from the tree do not form an attractive garland .
用去年的落叶是编不出美丽的花环的。 |
