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。
Many country towns were still living in blissful ignorance of the post-war crime wave.
她使他们的童年生活非常快乐、无忧无虑。
我很难过，因为我觉得我无忧无虑的美好童年生活结束了。
I was heartsick, for I felt that the splendid years of my carefree childhood had come to an end.
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