impetusKK [ˈɪmpətəs] ｜ /ˈɪmpətəs/
GEPT 中高級
C2noun
a force that moves something along, a driving force or momentum
The successful completion of the project provided the impetus for the team to take on even bigger challenges.
推動力；動力
C2noun
a stimulus that encourages activity or initiates an action, a motivation
The news of a promotion at work gave her the impetus to work harder and take on more responsibilities.
刺激；促進動機