on the spur of the moment, suddenly, without any previous planning or thought

一时冲动:

We would often decide what to play on the spur of the moment.

我们经常是凭兴致临时决定要演奏什么。

a fact or event that makes you try harder to do something

激励因素; 鼓舞; 鞭策:

It provided the spur to further research.

这对进一步的研究起到了鼓舞作用。

The crowd's reaction only acted as a spur.

人群的反应不过是起了刺激作用。

a sharp pointed object on the heel of a rider's boot which is used to encourage a horse to go faster

马刺

earn / win your spurs, to show that you deserve to succeed because you have the right skills

〔因拥有正确技能而〕获得荣誉，赢得名望

a piece of high ground which sticks out from the side of a hill or mountain

山嘴，尖坡

a railway track or road that goes away from a main line or road

〔铁路或公路的〕支线

[T] also spur sb on to encourage someone or make them want to do something

激励，鼓励:

The band were spurred on by the success of their last two singles.

乐队因最近两张单曲唱片的成功而深受鼓舞。

His misfortunes spurred him to write.

他的不幸遭遇激励着他写作。

the coach who spurred him on to Olympic success

激励他在奥运会上取得成功的教练

It was an article in the local newspaper which finally spurred him into action .

是当地报纸上的一篇文章最终促使他行动起来。

[T] to make an improvement or change happen faster

促进，刺激;

Lower taxes would spur investment and help economic growth.

降低税率将刺激投资，有助于经济增长。

[I,T] to encourage a horse to go faster, especially by pushing it with special points on the heels of your boots

〔尤指用马刺〕策马前进; 使〔马〕快跑