以上两个词中文意思相近,有时多少可以互相替换使用,但一般情况下应该使用哪个词都已经预定俗成。
pain 为一般性的说法,从用不着治疗的slight pain 到无法忍受的unbearable pain ,各种各样的疼痛都可用。而ache为muscle ache toothache这样的疼痛,通常指无需要急治的不严重的疼痛。
Pain is a general word that can refer to both light and severe pain.Ache is usually light pain that is continuous.