" To pull your punches" means not to hit the person as hard as you could.

“to pull your punches” 的意思是不要尽你所能地打对方。

Everybody could see that you were trying to pull your punches, but that guy just wouldn't give an inch.

每个人都看得出来你想挽回你的拳头，但那家伙就是不肯让步。

" To pull your punches" would be not to hit as hard as you could; that's where the expression, I believe, comes from.

“to pull your punches” 就是不要尽你所能地打；我相信，这就是表达的来源。