原動力

原动力
yuándòng
  1. motive force
  2. prime mover
  3. first cause
  4. agent

CEDICT

  1. driving force; prime mover
  2. first cause; agent

Wiktionary

  1. 能產生動核電核能
  2. 比喻某事活力來源

重編國語辭典

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