motive
🇺🇸
/ˈməʊtɪv/
🇬🇧
/ˈməʊtɪv/
the reason why someone does something
The police are trying to find the motive for the crime.
警方正在努力尋找犯罪的動機。
causing movement or action
The motive force of the engine drives the wheels.
引擎的動力驅動著車輪。