a slapping pace的用法和样例：
- Away we went at a slapping pace.
- The rude boy got a slap in the face.
- He sent the horse forward with a slap on its rump.
- He gave her a slap on the cheek and she began to cry.
- His decision was a slap in the face to those who had tried to change his mind.
- He gave her a slap on the cheek.