n.倾向；习性
He showed a propensity for violence. 他表现出暴力倾向。
He has a propensity for drinking too much alcohol. 他有酗酒的倾向。
She has a propensity to exaggerate. 她有夸大的习性。
He recognized his own propensity to evil. 他承认自己生性喜作恶。
