As these ripples, called gravitational waves, are produced, the star pair loses some of its energy, causing their orbits to slowly shrink.

当这种被称为引力波的涟漪产生时，这对双星就会释放出一些能量，结果就导致它们的运行轨道向内收缩。

Pounding waves slowly chip away the bases of cliffs, forcing chunks of rock to crumble and slide into the sea.

海浪的冲击慢慢蚕食了悬崖的基础，促使岩石块倒塌而滑入大海。

Secondary waves travel more slowly and arrive after the P-waves.

次要波传播的更慢，发生在P波之后。