motion
单词辨析：
指某人或某物运动的过程或方式。
the rocking motion of the boat
小船的摇晃
These data are calculated based on the motion of the planets.
这些数据是根据行星的运行而计算得出的。
What is your opinion on the perpetual motion machine?
你对永动机有什么看法？
指朝某一方向的移动，通常用单数。
Seeing the signal, she made no move towards the door.
看到信号之后，她没有再朝门口移动。
The camera on the table will record your every move.
桌子上的那台摄影机将会记录你的一举一动。
多指某人或某物位置的变化。
The audience applauded the dancer's graceful movements.
观众为舞蹈演员优美的动作喝彩。
A slight movement of the curtains showed where he was hiding.
窗帘稍微动了一下，暴露了他藏身的位置。
相关例句：
The train jolted into motion
火车猛地一颠，开动了。
This can be seen easily with the benefit of slow motion video playback.
借助于慢镜头的回放，可以很容易地看清楚这个过程。
He made a neat chopping motion with his hand.
他挥手做了一个干净利落的劈砍的动作。
The motion was adopted [ carried].
通过了这项动议。
She motioned for the locked front doors to be opened
她示意把锁着的前门打开。
One group of muscles sets the next group in motion
一组肌肉带动下一组肌肉运动。