쾌락이 일종의 유인으로 작용한다 The pleasure acts as a kind of the attraction. 쾌락 : pleasure, delight, enjoyment 일종 : a kind 유인 : temptation, attraction 작용 : action 작용하다 : act (as/on), work (on) A acts as B => A 는 B 로 작용한다.

I am not native so I could be wrong but my guess is "pleasure can be used as one form of attraction". What is the context, where did you read this ? I'll be delight to help more if I could.