单词	king post
释义	king post noun : a vertical member connecting the apex of a triangular truss (as of a roof) with the base Word History First Known Use 1669, in the meaning defined above
随便看	pumpless pumpman pumpmen pumps pumps out pumps up pun puna Puna de Atacama punaise punalua punaluan Punan punans punas punc Puncak Jaya punce punces punch punch bag punch bowl punch card punch cutter punch holes in

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