It definitely looks like somebody's conducting with the wave motions.

- 看起来绝对是有人在指挥波浪运动。

But even in an ideal water wave, the molecules do drift a bit in the direction of wave motion.

但即使在水波中，分子也会在波浪运动方向上稍微漂移。

When marching along, the spider walks in a winding wave motion, which appears to potential predators as an ant following a trail.

行进时， 蜘蛛以蜿蜒波浪运动行走，这在潜在捕食者看来就追寻踪迹蚂蚁。

But sound is the other kind of wave: it’s a longitudinal wave, meaning that the wave’s back-and-forth motion happens in the same direction in which the wave travels.

但声音是另种波：它是种纵波，这意味着波来回运动发生在与波传播相同方向上。

As the waves then move through the water, particles push and pull on their neighbors through the wave induced pressure, and this motion propagates energy through the water in unison with the wave motion.

随着波在水中移动，粒子会透过波推拉它们附近粒子导致压力产生，这种运动会配合波运动，通过水来传播能量。