| 单词 | labrum | 
| 释义 | labrumnoun  la·brum  ˈlā-brəm   1    : an upper or anterior mouthpart of an arthropod consisting of a single median piece in front of or above the mandibles   2    : a ring of fibrous cartilage forming the margin of the shallow cavity of the upper part of the scapula by which the humerus articulates with the shoulder girdle    | 
	
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