"Motion" 的意思是 "运动" 或 "动态"。它通常用来描述物体或系统的移动或变化，也可以指提议、动议或手势等。以下是三个使用 "motion" 的英文例句：

The ball is in motion as it rolls down the hill.

(球沿着山坡滚下来，处于运动状态。)

She made a graceful motion with her hands to indicate her agreement.

(她用手做了一个优雅的动作来表示同意。)

The court adjourned the hearing pending further motion from the prosecution.

(法庭休庭，等待检方提出进一步的动议。)