### Chinese: 研究人员认为，尽管这是一只年轻恐龙的尾巴，但样本显示的是成年羽毛，而非雏龙的绒毛。
### English: The researchers believe that although this is the tail of a young dinosaur, the sample shows adult feathers, not the down of a hatchling.

### Improved English: The researchers believe that although this is the tail of a young dinosaur, the sample shows adult feathers, not the down of a hatchling.
