| 单词 | unprecedential | 
| 释义 | Definition of unprecedential in English:unprecedentialadjective (ˌ)ʌnˌprɛsɪˈdɛnʃl 
 OriginEarly 18th century; earliest use found in John Evelyn (1620–1706), diarist and writer. From un- + precedential. Definition of unprecedential in US English:unprecedentialadjective(ˌ)ʌnˌprɛsɪˈdɛnʃl 
 OriginEarly 18th century; earliest use found in John Evelyn (1620–1706), diarist and writer. From un- + precedential.  | 
	
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