Traditional Culture Encyclopedia - Weather forecast - How to divide deceleration and deceleration?

How to divide deceleration and deceleration?

There is no difference in their meaning, the only difference is regionality.

Ten years ago, many people used Slow up, but now there are fewer. Some States in the United States still like to use slow up, such as DE, MD, WV, VA, TN and KY. Comparatively speaking, slowing down is still the most commonly used.