Definition
This idiom is used to express that having good intentions alone is not sufficient; one must act upon those intentions, as failing to do so can lead to negative outcomes.
善意蛤事，往往從反。
He had intended to help his friend, but his interference only made the situation worse; it just goes to show that the road to hell is paved with good intentions.
他原本想帮助他的朋友，但他的干涉反而让情况变得更糟；这正好说明了通往地狱的道路是由善意铺成的。
Their initial plan was to save the company money, but the measures they took ultimately led to higher expenses; it goes to show that the road to hell is paved with good intentions.
他们最初的计划是为公司省钱，但他们采取的措施最终导致了更高的开支；这正好说明了通往地狱的道路是由善意铺成的。
She tried to give her children a surprise, but her secret plan ended up confusing and upsetting them; it just goes to show that the road to hell is paved with good intentions.
她试图给孩子们一个惊喜，但她的秘密计划最终却让他们感到困惑和不安；这正好说明了通往地狱的道路是由善意铺成的。