As fast as lightning, very fast:
Pool: running; Switch: flash. Describe it quickly, like the wind blowing lightning.
These soldiers are very expensive. B: and whole grains:
Fast: Very fast. Fighting is expensive, and action is particularly fast.
Striding meteors d m: b Li ú x and ng:
Describe a big stride and a fast walk.
Meteors drive the moon lix and ng g m: nyuè:
Like a meteor chasing the moon. Describe quick action.
A thousand miles a day y and day qi ā n l ǐ:
At first, horses were described as fast. The latter metaphor has made rapid progress.