Today, you learned about traveling waves, and how their frequency, wavelength, and speed are all connected.

今天，您了解了行，们频率、长和速度如何相互关联。

But you might say that it does have special powers, because it’ll demonstrate for us the physics of traveling waves.

但你可能会说确实有特殊能力，因为会为我们展示行物理特性。

But you might say that it does have special powers, because it'll demonstrate for us the physics of traveling waves.

但你可说有非凡力量， 因为将向我们解释行物理学。

You might remember when we talked about traveling waves that a wave's speed is equal to its frequency times its wavelength.

你可能还记得当我们谈到行时，速度等于频率乘长。

Remember how a wave traveling down a rope gets reflected differently, depending on whether the end of the rope is fixed or loose?

我记得行是如何沿着绳索反射 不同，取决于党是否？