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	have precedence over have priority have promise have sex have some surprises up their sleeves have someone back have someone in the palm of one's hand have someone on a string have someone or something all to oneself have someone or something covered have someone or something for lunch have someone or something in mind have someone or something to oneself have someone or something to thank for have someone or something to thank for something have someone pegged have someone stumped have someone taped have someone's (best) interests at heart have someone's back have someone's best interests at heart have someone's ear have someone's interests at heart have someone's measure have someone's number

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