set in motion片語動詞KK [sɛt ɪn ˋmoʃən] /sɛt ɪn ˈmoʊʃən/發音片語動詞1啟動、發動、著手進行可拆開The new director set in motion a complete reform of the department.新任主管啟動了部門的全面改革。2引發、觸發可拆開That one phone call set in motion a chain of unexpected events.那一通電話引發了一連串意想不到的事件。3使運轉、使移動可拆開A small lever sets the whole mechanism in motion.一根小小的槓桿就能讓整個機械運轉起來。