stream surface

例句：

1. 1. The stream flows over the rocks and creates a beautifulpattern on the surface.
   这条小溪流过岩石，在水面上形成了美丽的图案。
2. 2. The scientist studied the surface of theocean to understand its impact on the environment.
   这位科学家研究了海洋的表面，以了解其对环境的影响。
3. 3. Theengineer designed a new surfacefor the bridge to improve itsstability.
   工程师设计了一座新桥的桥梁表面，以提高其稳定性。