N-COUNT [usually plural] [adjective NOUN](尤指好的礼仪或得体的举止方面的)细节,小节The niceties of a situation are its details, especially with regard to good manners or the appropriate behaviour for that situation. (尤指好的礼仪或得体的举止方面的)细节,小节
By the end of term, girls will have learnt the niceties of dinner party conversation. [+ of]