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单词	picogram
释义	pi·co·gram (pēkə-grăm′, pī-) n. One trillionth (10-12) of a gram.
随便看	patronymic patronymically patroon "Patsy." patsy patten patter patter patterer pattern patterning patternmaker pattern maker patternmaking Patterson Patterson Patti Patton Patton "Patty." patty patty-cake pattypan squash patty shell patulous

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