decurrent leaf

例句：

1. 1. The decurrent leaf is a fascinating example of how plants adapt to changing conditions.
   退流叶是植物适应不断变化条件的一个引人入胜的例子。
2. 2. The forest was filled with the sound of rustling leaves as the decurrent leafs fell from the trees.
   森林里充满了落叶从树上落下的声音。
3. 3. The scientist studied the decurrent leafs in order to understand their role in the ecosystem.
   科学家研究了退流叶，以了解它们在生态系统中的作用。