a fine detail or distinction, especially one regarded as intricate and fussy
(尤指复杂、繁琐的)细节;细微的区别
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she was never interested in the niceties of Greek and Latin. 她对希腊语和拉丁语之间的细微差别从来不感兴趣。
 
[mass noun]accuracy or precision
准确,精确
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she prided herself on her nicety of pronunciation .她对自己准确的发音颇感得意。
 
a minor aspect of polite social behaviour; a detail of etiquette
(社交上的)细节;礼节
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we were brought up to observe the niceties .我们从小就被教导要注意细小礼节。
 
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to a nicety precisely 精确地 
"Middle English (in the sense ‘folly, foolish conduct’): from Old French