a sharp pointed object that riders sometimes wear on the heels of their boots and use to encourage their horse to go faster 马刺；靴刺
verb
to encourage sb to do sth or to encourage them to try harder to achieve sth 鞭策；激励；刺激；鼓舞
~ sb/sth (on) to sth/to do sth
Her difficult childhood spurred her on to succeed.
她艰辛的童年激励她取得成功。
~ sb/sth into sth
I was spurred into action by the letter.
那封信激励我行动起来。
~ sb/sth (on)
The band has been spurred on by the success of their last single.
最近一张单曲唱片的成功使乐队受到鼓舞。
~ sthto make sth happen faster or sooner 促进，加速，刺激（某事发生）
The agreement is essential to spurring economic growth around the world.
这项协议对于促进世界经济的增长是至关重要的
suddenly, without planning in advance 一时冲动之下；心血来潮
I phoned him up on the spur of the moment.
我一时冲动，给他打了电话。
a spur-of-the-moment decision
心血来潮的决