Definition: a reason for doing something Level: B2
警方仍在调查犯罪动机。
The police are still investigating the ___motive for the crime.
这次袭击背后的动机是什么？
What was the ___motive behind the attack?
他不太可能犯下谋杀罪，因为没有动机。
He was unlikely to have committed the murder since there was no ___motive.
