！bliss的派生词是blissful，blissful中文意思是adj. 极乐的使人幸福的无忧无虑的充满喜悦的

Many country towns were still living in blissful ignorance of the post-war crime wave.

很多乡间小镇对战后的犯罪潮一无所知，依然生活在无忧无虑中。