deciduous leaf

例句：

1. 1.The deciduous trees shed their leaves in the fall.
   这些落叶树在秋天会脱落叶子。
2. 2. The park has many deciduous trees that are beautiful during the winter.
   公园里有许多落叶树，冬天时它们非常美丽。
3. 3.The scientist collected samples of deciduous leaves to study their chemical composition.
   科学家收集了落叶样本来研究它们的化学成分。