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  1. mainspring

    • IPA[ˈmeɪnsprɪŋ]

    英式

    • n.
      the main agent of motivation;the principal spring in a watch, clock, or other mechanism.
    • noun: mainspring, plural noun: mainsprings

    • 釋義

    名詞

    • 1. the main agent of motivation innovation is the mainspring of the new economy
    • 2. the principal spring in a watch, clock, or other mechanism.
    • 更多解釋
    • IPA[ˈmānˌspriNG]

    美式

    • n.
      something that plays a principal part in motivating or maintaining a movement, process, or ... innovation is the mainspring of the new economy

    Oxford American Dictionary