单词	pi electron
释义	pi electron noun : an electron involved in a pi bond Word History First Known Use 1950, in the meaning defined above
随便看	sequestratrix sequestree sequestrum sequestrums sequin sequined sequining sequinned sequins sequitur sequiturs sequoia Sequoia National Park sequoia pitch moth sequoiadendra Sequoiadendron sequoiadendrons sequoias Sequoya sequoyah ser ser coupling ser gott ser iii sera

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