surface caterpillar

例句：

1. 1. The surface of the lake is smooth and reflective.
   湖的表面光滑且反射性强。
2. 2. The scientist studied the surface of the ocean to understand its behavior.
   科学家研究了海洋的表面以了解其行为。
3. 3.The car's surface was scratched from a collision with another vehicle.
   这辆车的表面因为与其他车辆相撞而刮伤了。