thumbscrew
noun [ C ] uk/ˈθʌm.skruː/ us/ˈθʌm.skruː/ (also screws)
拇指夹（旧时的刑具）
a device used especially in the past to torture people (= cause them great pain) by crushing their thumbs
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。