wish.bone
n.（名词）The forked bone anterior to the breastbone of most birds, formed by the fusion of the clavicles.鸟胸的叉骨，如愿骨：大多数鸟胸骨前部的叉形骨，因锁骨合并形成的Football An offensive formation in which the halfbacks are positioned behind and to the left and right of the fullback.【橄榄球】 叉骨阵形：中卫布置在后面，位于进攻后卫左右的一种进攻队形
来源：[From the superstition that when two people pull the bone apart a wish will be fulfilled for the person who retains the longer piece] [从迷信.当两个人共同折断一块骨头，持较长的一段的人就会如愿以偿.而来]
