facet
noun [ C ] uk/ˈfæs.ɪt/ us/ˈfæs.ət/
（问题、形势等的）方面，部分
one part of a subject, situation, etc. that has many parts
She has so many facets to her personality. 她的性格具有多面性。
Synonyms: angle (WAY OF THINKING)aspect (FEATURE)feature (QUALITY)ingredientpoint (CHARACTERISTIC)side (PART OF SITUATION)strand (PART)
（宝石的）琢面，小平面
one of the small flat surfaces cut on a precious stone
medical specialized（骨或牙上的）小平面
a flat surface on a bone or tooth, either occurring naturally or caused by continued use
Injured or painful facet joints can be injected with steroids. 受伤或疼痛的关节面可采用注入类固醇的方法。