观看免费视频 Hourglass
动画说明：
As the sand grains trickle down, cascading through the narrow neck of the hourglass, the video invites the viewer to pause and become immersed in the meditative passage of time.
As the sand grains trickle down, cascading through the narrow neck of the hourglass, the video invites the viewer to pause and become immersed in the meditative passage of time.