| 单词 | pecking order | 
| 释义 | pecking order [`pek·iŋ ´ȯr·dǝr]  PSYCHOLOGY A social hierarchy of prestige, dominance, or authority.  VERTEBRATE ZOOLOGY A hierarchy of social dominance within a flock of poultry where each bird is allowed to peck another lower in the scale and must submit to pecking by one of higher rank.  | 
	
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