intransitive. to strain back: to go back in pedigree (to an ancestor).
| 单词 | θ19301 | 
| 释义 | the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > 			[verb (intransitive)]		 > go back in pedigree (1)		 to strain back1856 intransitive. to strain back: to go back in pedigree (to an ancestor).  | 
	
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