单词	percussion cap
释义	percussion cap noun : cap sense 5 Example Sentences Recent Examples on the Web Oxygen generators use a chemical reaction initiated by a percussion cap. John Cox, USA TODAY, 4 Dec. 2020 Word History First Known Use 1823, in the meaning defined above
随便看	popularisms popularities popularity popularity contest popularization popularizations popularize popularized popularizer popularizers popularizes popularizing popularly popularly elected populars populate populated populates populating population population density population drift population dynamics population explosion population pressure

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。