backward movement

常见例句

The instant polar movement has backward movement(from east to west).
瞬时极移存在反向运动（由东向西）。
Forward and backward movement, meanwhile, was a bit harder to coordinate because of the lag time half way around the globe, Mr. Garriott de Cayeux says.
理查德说，不过由于横跨近半个地球的时间滞后问题，前后滑动的动作有点难以协调。
The young girl gave way to that slight straightening up with a backward movement, accompanied by a raising of the eyelids, which signifies: "Well, what is the matter?"
那姑娘把身体向后微微挺了一下，同时也张了一下眼皮，意思仿佛说：“怎么了，有什么事？”