prude

1. N-COUNT If you call someone a prude, you mean that they are too easily shocked by things relating to sex. (尤指在性問題上) 一本正經的人[表不滿]

Caroline was very much a prude. She wouldn't let me see her naked. 卡羅琳是個過於一本正經的人。她不肯讓我看到她的裸躰。