nicety

柯林斯词典

1. N-COUNT The niceties of a situation are its details, especially with regard to good manners or the appropriate behaviour for that situation. (礼仪或礼貌举止上的)细节[usu pl, oft 'the' N 'of' n, adj N]
...the niceties of dinner party conversation. ...晚宴上谈话的礼节。
He wasted no time with social niceties. 他没有在社交礼仪上浪费一点点时间。