短语 | the mainspring of sth |
释义 | the mainspring of sth the most important reason or influence that makes something happen…的主要原因(影响):•Christian faith was the mainspring of Peter's life.基督教信仰是彼得生活的主要动力。•Small companies are the mainspring of the British economy.小公司是英国经济的主体。 |
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