The motion of surface waves is somewhat more complex.

面波的运动有点复杂。

youdao

Put in another way, waves are the manifestation of energy moving across the ocean surface.

换句话说，海浪是能量通过海洋表面运动的表现形式。

youdao

Then, the snow's surface will help to send back sound waves.

这时，雪的表面就会反射声波。

youdao

Then, the snow's surface will help to send back sound waves.

这时，雪的表面就会反射声波。

youdao