on the spur of the moment
一时冲动地；立刻
同义词
参考例子
1.On the spur of the moment I decided to loan my sofa and my rug to my niece who was moving to a larger home.
我不假思索地就决定把我的沙发和我的小地毯借给我的侄女，她就要搬到一个较大的家了。
2.But, we have to also look at Asian countries where impulsiveness plays a much more important role, which is that suicide can happen on the spur of the moment.
但是，我们也必须看到在亚洲国家，情绪冲动是更重要的因素，也就是说，人们可能因为一时冲动就去自杀了。
3.Justice Kayetook into account mitigating factors including Toal's youth and guilty plea, remorse and the fact it was a dumb decision on the spur of the moment.
法官托伊考虑减轻处罚的因素有，托尔还年轻并认了罪，和表示忏悔，以及那个行为是在一时冲动下的愚蠢决定。
英文解释
adv.
1.on impulse; without premeditation
网络释义
on the spur of the moment
一时冲动; 立刻; 一时冲动之下,不假思索的; 临时，突然间;