observance
美 [əbˈzɜrvəns] 
英 [əbˈzɜː(r)v(ə)ns] 
- n.遵守(法律,规则,传统等);(宗教的,正式的)仪式
 - 网络惯例;庆祝;习惯
 
复数:observances  
observance
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1.  | [u][sing] (对法律、习俗的)遵守,奉行;(节日的)庆祝the practice of obeying a law, celebrating a festival or behaving according to a particular custom  | 
observance of the law 守法  | |
a strict observance of the Sabbath 对安息日的严格遵守  | 
2.  | [c][usupl] 宗教(或传统节日)的仪式an act performed as part of a religious or traditional ceremony  | 
religious observances 宗教仪式  |