nicety
noun uk/ˈnaɪ.sə.ti/ us/ˈnaɪ.sə.t̬i/
[ C ]细节；细微的差别
a detail or small difference that is only obvious after careful thought
They spent a lot of time arguing about legal niceties. 他们花费了大量时间争论法律上的细微区别。
We don't bother with all the social niceties here. 我们略过这里的一切繁文缛节。
[ U ] formal微妙；精确
the fact that something is based on very slight differences