N-COUNT

(行动的)动机，缘由

例句

n.

动机, 目的

adj.

发动的；导致运动的

Noun

1. the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior;

2. a theme that is elaborated on in a piece of music

Adjective

1. causing or able to cause motion;

2. impelling to action;