prude

1. N-COUNT If you call someone a prude, you mean that they are too easily shocked by things relating to sex. (尤指在性问题上) 一本正经的人[表不满]

Caroline was very much a prude. She wouldn't let me see her naked. 卡罗琳是个过于一本正经的人。她不肯让我看到她的裸体。